(a) Interpretation: To justify whether the given statement is true or false. Concept Introduction: The phases, solid, liquid or gas, are interconvertible from one to another by addition or removal of energy.

Question

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Answer 1

Question

Definition Definition Substance that constitutes everything in the universe. Matter consists of atoms, which are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction: solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

Chapter 5, Problem 5.71P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The phases, solid, liquid or gas, are interconvertible from one to another by addition or removal of energy.

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Density of any substance is a ratio of its mass and volume. It gives information about the degree of compactness of a substance.

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The solid phase of a substance has definite shape and volume as the intermolecular force of attraction between the atom/ions or molecules are very strong.

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Matter or element or substances which are surrounded around us are having three basic forms- solid, liquid, and gas.

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystallization is a process in which liquid is cooled to particular temperature to form a solid form of it. Carbon has five allotropes which are having different chemical and physical properties.

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystalline form of carbon like diamond, graphite, buckyball, nanotube and soot are having different arrangements of carbon atom in it. Depends upon the arrangements of carbon atoms, this crystalline form is differentiated.

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

An arithmetical multiplier which is used for converting a quantity expressed in one unit into another equivalent set of units is said to be conversion factor.

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon nanotubes are allotropes of carbon whose structure is cylindrical nanostructure.

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon has five allotropes which are having different chemical and physical properties. Examples are diamond, graphite, soot, nanotubes and buckyball.

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The process in which the substance changes from a solid phase to liquid phase is said to be the melting of solid.

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Solids that do not have definite geometrical shape are said to be amorphous in nature, they do not have sharp melting point and lack in long-range order.

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Q2: Ranking Acidity a) Rank the labeled protons in the following molecule in order of increasing pKa. Briefly explain the ranking. Use Table 2.2 as reference. Ha Нь HC H-N Ha OHe b) Atenolol is a drug used to treat high blood pressure. Which of the indicated N-H bonds is more acidic? Explain. (Hint: use resonance structures to help) Name the functional groups on atenolol. H H-N atenolol Ν H-N OH Н

Answer d, e, and f

If the rotational constant of a molecule is B = 120 cm-1, it can be stated that the transition from 2←1:a) gives rise to a line at 120 cm-1b) is a forbidden transitionc) gives rise to a line at 240 cm-1d) gives rise to a line at 480 cm-1

Answer 2

Question

Definition Definition Substance that constitutes everything in the universe. Matter consists of atoms, which are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction: solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

Chapter 5, Problem 5.71P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The phases, solid, liquid or gas, are interconvertible from one to another by addition or removal of energy.

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Density of any substance is a ratio of its mass and volume. It gives information about the degree of compactness of a substance.

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The solid phase of a substance has definite shape and volume as the intermolecular force of attraction between the atom/ions or molecules are very strong.

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Matter or element or substances which are surrounded around us are having three basic forms- solid, liquid, and gas.

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystallization is a process in which liquid is cooled to particular temperature to form a solid form of it. Carbon has five allotropes which are having different chemical and physical properties.

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystalline form of carbon like diamond, graphite, buckyball, nanotube and soot are having different arrangements of carbon atom in it. Depends upon the arrangements of carbon atoms, this crystalline form is differentiated.

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

An arithmetical multiplier which is used for converting a quantity expressed in one unit into another equivalent set of units is said to be conversion factor.

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon nanotubes are allotropes of carbon whose structure is cylindrical nanostructure.

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon has five allotropes which are having different chemical and physical properties. Examples are diamond, graphite, soot, nanotubes and buckyball.

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The process in which the substance changes from a solid phase to liquid phase is said to be the melting of solid.

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Solids that do not have definite geometrical shape are said to be amorphous in nature, they do not have sharp melting point and lack in long-range order.

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Answer 3

Question

Definition Definition Substance that constitutes everything in the universe. Matter consists of atoms, which are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction: solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

Chapter 5, Problem 5.71P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The phases, solid, liquid or gas, are interconvertible from one to another by addition or removal of energy.

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Density of any substance is a ratio of its mass and volume. It gives information about the degree of compactness of a substance.

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The solid phase of a substance has definite shape and volume as the intermolecular force of attraction between the atom/ions or molecules are very strong.

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Matter or element or substances which are surrounded around us are having three basic forms- solid, liquid, and gas.

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystallization is a process in which liquid is cooled to particular temperature to form a solid form of it. Carbon has five allotropes which are having different chemical and physical properties.

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystalline form of carbon like diamond, graphite, buckyball, nanotube and soot are having different arrangements of carbon atom in it. Depends upon the arrangements of carbon atoms, this crystalline form is differentiated.

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

An arithmetical multiplier which is used for converting a quantity expressed in one unit into another equivalent set of units is said to be conversion factor.

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon nanotubes are allotropes of carbon whose structure is cylindrical nanostructure.

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon has five allotropes which are having different chemical and physical properties. Examples are diamond, graphite, soot, nanotubes and buckyball.

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The process in which the substance changes from a solid phase to liquid phase is said to be the melting of solid.

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Solids that do not have definite geometrical shape are said to be amorphous in nature, they do not have sharp melting point and lack in long-range order.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Definition Definition Substance that constitutes everything in the universe. Matter consists of atoms, which are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction: solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

Chapter 5, Problem 5.71P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The phases, solid, liquid or gas, are interconvertible from one to another by addition or removal of energy.

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Density of any substance is a ratio of its mass and volume. It gives information about the degree of compactness of a substance.

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The solid phase of a substance has definite shape and volume as the intermolecular force of attraction between the atom/ions or molecules are very strong.

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Matter or element or substances which are surrounded around us are having three basic forms- solid, liquid, and gas.

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystallization is a process in which liquid is cooled to particular temperature to form a solid form of it. Carbon has five allotropes which are having different chemical and physical properties.

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystalline form of carbon like diamond, graphite, buckyball, nanotube and soot are having different arrangements of carbon atom in it. Depends upon the arrangements of carbon atoms, this crystalline form is differentiated.

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

An arithmetical multiplier which is used for converting a quantity expressed in one unit into another equivalent set of units is said to be conversion factor.

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon nanotubes are allotropes of carbon whose structure is cylindrical nanostructure.

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon has five allotropes which are having different chemical and physical properties. Examples are diamond, graphite, soot, nanotubes and buckyball.

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The process in which the substance changes from a solid phase to liquid phase is said to be the melting of solid.

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Solids that do not have definite geometrical shape are said to be amorphous in nature, they do not have sharp melting point and lack in long-range order.

Expert Solution & Answer

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Answer 5

Chapter 5, Problem 5.71P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The phases, solid, liquid or gas, are interconvertible from one to another by addition or removal of energy.

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Density of any substance is a ratio of its mass and volume. It gives information about the degree of compactness of a substance.

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The solid phase of a substance has definite shape and volume as the intermolecular force of attraction between the atom/ions or molecules are very strong.

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Matter or element or substances which are surrounded around us are having three basic forms- solid, liquid, and gas.

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystallization is a process in which liquid is cooled to particular temperature to form a solid form of it. Carbon has five allotropes which are having different chemical and physical properties.

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystalline form of carbon like diamond, graphite, buckyball, nanotube and soot are having different arrangements of carbon atom in it. Depends upon the arrangements of carbon atoms, this crystalline form is differentiated.

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

An arithmetical multiplier which is used for converting a quantity expressed in one unit into another equivalent set of units is said to be conversion factor.

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon nanotubes are allotropes of carbon whose structure is cylindrical nanostructure.

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon has five allotropes which are having different chemical and physical properties. Examples are diamond, graphite, soot, nanotubes and buckyball.

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The process in which the substance changes from a solid phase to liquid phase is said to be the melting of solid.

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Solids that do not have definite geometrical shape are said to be amorphous in nature, they do not have sharp melting point and lack in long-range order.

Answer 6

Chapter 5, Problem 5.71P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The phases, solid, liquid or gas, are interconvertible from one to another by addition or removal of energy.

Answer 7

Chapter 5, Problem 5.71P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The phases, solid, liquid or gas, are interconvertible from one to another by addition or removal of energy.

Answer 8

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Density of any substance is a ratio of its mass and volume. It gives information about the degree of compactness of a substance.

Answer 9

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Density of any substance is a ratio of its mass and volume. It gives information about the degree of compactness of a substance.

Answer 10

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The solid phase of a substance has definite shape and volume as the intermolecular force of attraction between the atom/ions or molecules are very strong.

Answer 11

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The solid phase of a substance has definite shape and volume as the intermolecular force of attraction between the atom/ions or molecules are very strong.

Answer 12

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Matter or element or substances which are surrounded around us are having three basic forms- solid, liquid, and gas.

Answer 13

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Matter or element or substances which are surrounded around us are having three basic forms- solid, liquid, and gas.

Answer 14

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystallization is a process in which liquid is cooled to particular temperature to form a solid form of it. Carbon has five allotropes which are having different chemical and physical properties.

Answer 15

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystallization is a process in which liquid is cooled to particular temperature to form a solid form of it. Carbon has five allotropes which are having different chemical and physical properties.

Answer 16

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystalline form of carbon like diamond, graphite, buckyball, nanotube and soot are having different arrangements of carbon atom in it. Depends upon the arrangements of carbon atoms, this crystalline form is differentiated.

Answer 17

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystalline form of carbon like diamond, graphite, buckyball, nanotube and soot are having different arrangements of carbon atom in it. Depends upon the arrangements of carbon atoms, this crystalline form is differentiated.

Answer 18

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

An arithmetical multiplier which is used for converting a quantity expressed in one unit into another equivalent set of units is said to be conversion factor.

Answer 19

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

An arithmetical multiplier which is used for converting a quantity expressed in one unit into another equivalent set of units is said to be conversion factor.

Answer 20

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon nanotubes are allotropes of carbon whose structure is cylindrical nanostructure.

Answer 21

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon nanotubes are allotropes of carbon whose structure is cylindrical nanostructure.

Answer 22

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon has five allotropes which are having different chemical and physical properties. Examples are diamond, graphite, soot, nanotubes and buckyball.

Answer 23

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon has five allotropes which are having different chemical and physical properties. Examples are diamond, graphite, soot, nanotubes and buckyball.

Answer 24

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The process in which the substance changes from a solid phase to liquid phase is said to be the melting of solid.

Answer 25

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The process in which the substance changes from a solid phase to liquid phase is said to be the melting of solid.

Answer 26

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Solids that do not have definite geometrical shape are said to be amorphous in nature, they do not have sharp melting point and lack in long-range order.

Answer 27

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Solids that do not have definite geometrical shape are said to be amorphous in nature, they do not have sharp melting point and lack in long-range order.

Answer 28

Expert Solution & Answer

Answer 29

Expert Solution & Answer

Answer 30

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Answer 31

Ch. 5.3 - Prob. 5.1P Ch. 5.3 - Prob. 5.2P Ch. 5.3 - Prob. 5.3P Ch. 5.4 - Prob. 5.4P Ch. 5.4 - Prob. 5.5P Ch. 5.4 - Prob. 5.6P Ch. 5.5 - Prob. 5.7P Ch. 5.7 - Problem 5-8 Will the molecules in each set form a...Ch. 5.10 - Prob. 5.9P Ch. 5.10 - Prob. 5.10P

(a) Interpretation: To justify whether the given statement is true or false. Concept Introduction: The phases, solid, liquid or gas, are interconvertible from one to another by addition or removal of energy.

Solution Summary: The author explains that solid, liquid, and liquid phases are interconvertible from one to another by addition or removal of energy.

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The phases, solid, liquid or gas, are interconvertible from one to another by addition or removal of energy.

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Density of any substance is a ratio of its mass and volume. It gives information about the degree of compactness of a substance.

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The solid phase of a substance has definite shape and volume as the intermolecular force of attraction between the atom/ions or molecules are very strong.

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Matter or element or substances which are surrounded around us are having three basic forms- solid, liquid, and gas.

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystallization is a process in which liquid is cooled to particular temperature to form a solid form of it. Carbon has five allotropes which are having different chemical and physical properties.

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

An arithmetical multiplier which is used for converting a quantity expressed in one unit into another equivalent set of units is said to be conversion factor.

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon nanotubes are allotropes of carbon whose structure is cylindrical nanostructure.

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon has five allotropes which are having different chemical and physical properties. Examples are diamond, graphite, soot, nanotubes and buckyball.

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The process in which the substance changes from a solid phase to liquid phase is said to be the melting of solid.

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Solids that do not have definite geometrical shape are said to be amorphous in nature, they do not have sharp melting point and lack in long-range order.

Want to see the full answer?

Chapter 5 Solutions

(a) Interpretation: To justify whether the given statement is true or false. Concept Introduction: The phases, solid, liquid or gas, are interconvertible from one to another by addition or removal of energy.

Solution Summary: The author explains that solid, liquid, and liquid phases are interconvertible from one to another by addition or removal of energy.

(a) Interpretation: To justify whether the given statement is true or false. Concept Introduction: The phases, solid, liquid or gas, are interconvertible from one to another by addition or removal of energy.

(b) Interpretation: To justify whether the given statement is true or false. Concept Introduction: Density of any substance is a ratio of its mass and volume. It gives information about the degree of compactness of a substance.

(c) Interpretation: To justify whether the given statement is true or false. Concept Introduction: The solid phase of a substance has definite shape and volume as the intermolecular force of attraction between the atom/ions or molecules are very strong.

(d) Interpretation: To justify whether the given statement is true or false. Concept Introduction: Matter or element or substances which are surrounded around us are having three basic forms- solid, liquid, and gas.

(e) Interpretation: To justify whether the given statement is true or false. Concept Introduction: Crystallization is a process in which liquid is cooled to particular temperature to form a solid form of it. Carbon has five allotropes which are having different chemical and physical properties.

(g) Interpretation: To justify whether the given statement is true or false. Concept Introduction: An arithmetical multiplier which is used for converting a quantity expressed in one unit into another equivalent set of units is said to be conversion factor.

(h) Interpretation: To justify whether the given statement is true or false. Concept Introduction: Carbon nanotubes are allotropes of carbon whose structure is cylindrical nanostructure.

(i) Interpretation: To justify whether the given statement is true or false. Concept Introduction: Carbon has five allotropes which are having different chemical and physical properties. Examples are diamond, graphite, soot, nanotubes and buckyball.

(j) Interpretation: To justify whether the given statement is true or false. Concept Introduction: The process in which the substance changes from a solid phase to liquid phase is said to be the melting of solid.

(k) Interpretation: To justify whether the given statement is true or false. Concept Introduction: Solids that do not have definite geometrical shape are said to be amorphous in nature, they do not have sharp melting point and lack in long-range order.

Want to see the full answer?

Chapter 5 Solutions

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The phases, solid, liquid or gas, are interconvertible from one to another by addition or removal of energy.

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Density of any substance is a ratio of its mass and volume. It gives information about the degree of compactness of a substance.

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The solid phase of a substance has definite shape and volume as the intermolecular force of attraction between the atom/ions or molecules are very strong.

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Matter or element or substances which are surrounded around us are having three basic forms- solid, liquid, and gas.

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Crystallization is a process in which liquid is cooled to particular temperature to form a solid form of it. Carbon has five allotropes which are having different chemical and physical properties.

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

An arithmetical multiplier which is used for converting a quantity expressed in one unit into another equivalent set of units is said to be conversion factor.

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon nanotubes are allotropes of carbon whose structure is cylindrical nanostructure.

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Carbon has five allotropes which are having different chemical and physical properties. Examples are diamond, graphite, soot, nanotubes and buckyball.

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The process in which the substance changes from a solid phase to liquid phase is said to be the melting of solid.

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Solids that do not have definite geometrical shape are said to be amorphous in nature, they do not have sharp melting point and lack in long-range order.