(a) Interpretation: To justify whether the given statement is true or false. Concept Introduction: According to phase diagram, the three phases of any substance is inter convertible in between. The solid can be converted into liquid by heating it up to its melting point and the process is known as melting or fusion.

Question

As a substance is subjected to pressure and/or temperature changes, it may undergo condensation, deposition, freezing, melting, sublimation, or vaporization. (a) Consider the phase diagram shown below and state the cha nges that take place upon going from points A to B to C to D. (b) Is the transition from C to D exothermic or endothermic?

Answer 1

Question

Chapter 5, Problem 5.73P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is inter convertible in between. The solid can be converted into liquid by heating it up to its melting point and the process is known as melting or fusion.

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The liquid can be converted into gaseous form by heating it up to its boiling point and the process is known as boiling.

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The solid can be converted into liquid by heating it up and liquid is further into in to gaseous form by adding continues heat until it reaches to its boiling point.

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to heating curve, heat of fusion is a heat applied to a 1.0 g of solid substance to convert it in to its liquid phase.

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heating curve describes that the amount of heat required to vaporize 1.0 g of liquid at its normal boiling point is called as Heat of vaporization.

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The heat of vaporization is the amount of heat that is required to evaporate 1.0 g of liquid to gas form at its normal boiling point.

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heat of vaporization is the amount of heat required to evaporate 1.0 g of liquid to gas at its normal boiling point. The amount of heat is required to convert 1.0 g of solid to its liquid form is called as Heat of fusion.

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. Crystallization is a process in which liquid is cooled to temperature to form a solid form of it.

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Exothermic process is a process during which system releases energy whereas endothermic process is a process during which system absorbs energy.

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. This liquid formed from solid have the same molecules in it. For getting solid once again, liquid is required to be cooled back.

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Sublimation is a process in which a direct formation of gas form from solid form of substance occurs.

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As a substance is subjected to pressure and/or temperature changes, it may undergo condensation, deposition, freezing, melting, sublimation, or vaporization. (a) Consider the phase diagram shown below and state the cha nges that take place upon going from points A to B to C to D. (b) Is the transition from C to D exothermic or endothermic?

1,2,3 and 4

In each of the following groups of substances, pick the one that has the given property. Justify your answer. (a) highest boiling point Ne C12₂ HI Since this compound has ---Select--- (b) highest freezing point NH3 H₂O KCI Since this compound has ---Select--- unlike the other two compounds, it has the ---Select--- unlike the other two compounds, it has the ---Select--- (c) lowest vapor pressure at 25°C C12 12 F₂ Since all the molecules are ---Select--- and this molecule is ---Select--- than the other two, it has the intermolecular forces and will have the highest boiling point. intermolecular forces and will have the highest freezing point. ---Select--- ↑ ---Select--- (d) lowest freezing point H₂Se H₂ Cse2 Since this molecule is ---Select--- and ---Select--- than the other two, it has the ---Select--- ♥ ---Select--- and will have the lowest vapor pressure. and will have the lowest freezing point.

Answer 2

Question

Chapter 5, Problem 5.73P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is inter convertible in between. The solid can be converted into liquid by heating it up to its melting point and the process is known as melting or fusion.

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The liquid can be converted into gaseous form by heating it up to its boiling point and the process is known as boiling.

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The solid can be converted into liquid by heating it up and liquid is further into in to gaseous form by adding continues heat until it reaches to its boiling point.

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to heating curve, heat of fusion is a heat applied to a 1.0 g of solid substance to convert it in to its liquid phase.

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heating curve describes that the amount of heat required to vaporize 1.0 g of liquid at its normal boiling point is called as Heat of vaporization.

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The heat of vaporization is the amount of heat that is required to evaporate 1.0 g of liquid to gas form at its normal boiling point.

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heat of vaporization is the amount of heat required to evaporate 1.0 g of liquid to gas at its normal boiling point. The amount of heat is required to convert 1.0 g of solid to its liquid form is called as Heat of fusion.

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. Crystallization is a process in which liquid is cooled to temperature to form a solid form of it.

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Exothermic process is a process during which system releases energy whereas endothermic process is a process during which system absorbs energy.

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. This liquid formed from solid have the same molecules in it. For getting solid once again, liquid is required to be cooled back.

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Sublimation is a process in which a direct formation of gas form from solid form of substance occurs.

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Answer 3

Question

Chapter 5, Problem 5.73P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is inter convertible in between. The solid can be converted into liquid by heating it up to its melting point and the process is known as melting or fusion.

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The liquid can be converted into gaseous form by heating it up to its boiling point and the process is known as boiling.

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The solid can be converted into liquid by heating it up and liquid is further into in to gaseous form by adding continues heat until it reaches to its boiling point.

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to heating curve, heat of fusion is a heat applied to a 1.0 g of solid substance to convert it in to its liquid phase.

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heating curve describes that the amount of heat required to vaporize 1.0 g of liquid at its normal boiling point is called as Heat of vaporization.

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The heat of vaporization is the amount of heat that is required to evaporate 1.0 g of liquid to gas form at its normal boiling point.

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heat of vaporization is the amount of heat required to evaporate 1.0 g of liquid to gas at its normal boiling point. The amount of heat is required to convert 1.0 g of solid to its liquid form is called as Heat of fusion.

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. Crystallization is a process in which liquid is cooled to temperature to form a solid form of it.

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Exothermic process is a process during which system releases energy whereas endothermic process is a process during which system absorbs energy.

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. This liquid formed from solid have the same molecules in it. For getting solid once again, liquid is required to be cooled back.

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Sublimation is a process in which a direct formation of gas form from solid form of substance occurs.

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Answer 4

Question

Chapter 5, Problem 5.73P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is inter convertible in between. The solid can be converted into liquid by heating it up to its melting point and the process is known as melting or fusion.

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The liquid can be converted into gaseous form by heating it up to its boiling point and the process is known as boiling.

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The solid can be converted into liquid by heating it up and liquid is further into in to gaseous form by adding continues heat until it reaches to its boiling point.

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to heating curve, heat of fusion is a heat applied to a 1.0 g of solid substance to convert it in to its liquid phase.

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heating curve describes that the amount of heat required to vaporize 1.0 g of liquid at its normal boiling point is called as Heat of vaporization.

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The heat of vaporization is the amount of heat that is required to evaporate 1.0 g of liquid to gas form at its normal boiling point.

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heat of vaporization is the amount of heat required to evaporate 1.0 g of liquid to gas at its normal boiling point. The amount of heat is required to convert 1.0 g of solid to its liquid form is called as Heat of fusion.

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. Crystallization is a process in which liquid is cooled to temperature to form a solid form of it.

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Exothermic process is a process during which system releases energy whereas endothermic process is a process during which system absorbs energy.

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. This liquid formed from solid have the same molecules in it. For getting solid once again, liquid is required to be cooled back.

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Sublimation is a process in which a direct formation of gas form from solid form of substance occurs.

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Answer 5

Chapter 5, Problem 5.73P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is inter convertible in between. The solid can be converted into liquid by heating it up to its melting point and the process is known as melting or fusion.

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The liquid can be converted into gaseous form by heating it up to its boiling point and the process is known as boiling.

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The solid can be converted into liquid by heating it up and liquid is further into in to gaseous form by adding continues heat until it reaches to its boiling point.

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to heating curve, heat of fusion is a heat applied to a 1.0 g of solid substance to convert it in to its liquid phase.

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heating curve describes that the amount of heat required to vaporize 1.0 g of liquid at its normal boiling point is called as Heat of vaporization.

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The heat of vaporization is the amount of heat that is required to evaporate 1.0 g of liquid to gas form at its normal boiling point.

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heat of vaporization is the amount of heat required to evaporate 1.0 g of liquid to gas at its normal boiling point. The amount of heat is required to convert 1.0 g of solid to its liquid form is called as Heat of fusion.

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. Crystallization is a process in which liquid is cooled to temperature to form a solid form of it.

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Exothermic process is a process during which system releases energy whereas endothermic process is a process during which system absorbs energy.

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. This liquid formed from solid have the same molecules in it. For getting solid once again, liquid is required to be cooled back.

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Sublimation is a process in which a direct formation of gas form from solid form of substance occurs.

Answer 6

Chapter 5, Problem 5.73P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is inter convertible in between. The solid can be converted into liquid by heating it up to its melting point and the process is known as melting or fusion.

Answer 7

Chapter 5, Problem 5.73P

Interpretation Introduction

(a)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is inter convertible in between. The solid can be converted into liquid by heating it up to its melting point and the process is known as melting or fusion.

Answer 8

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The liquid can be converted into gaseous form by heating it up to its boiling point and the process is known as boiling.

Answer 9

Interpretation Introduction

(b)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The liquid can be converted into gaseous form by heating it up to its boiling point and the process is known as boiling.

Answer 10

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The solid can be converted into liquid by heating it up and liquid is further into in to gaseous form by adding continues heat until it reaches to its boiling point.

Answer 11

Interpretation Introduction

(c)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to phase diagram, the three phases of any substance is interconvertible in between. The solid can be converted into liquid by heating it up and liquid is further into in to gaseous form by adding continues heat until it reaches to its boiling point.

Answer 12

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to heating curve, heat of fusion is a heat applied to a 1.0 g of solid substance to convert it in to its liquid phase.

Answer 13

Interpretation Introduction

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to heating curve, heat of fusion is a heat applied to a 1.0 g of solid substance to convert it in to its liquid phase.

Answer 14

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heating curve describes that the amount of heat required to vaporize 1.0 g of liquid at its normal boiling point is called as Heat of vaporization.

Answer 15

Interpretation Introduction

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heating curve describes that the amount of heat required to vaporize 1.0 g of liquid at its normal boiling point is called as Heat of vaporization.

Answer 16

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The heat of vaporization is the amount of heat that is required to evaporate 1.0 g of liquid to gas form at its normal boiling point.

Answer 17

Interpretation Introduction

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The heat of vaporization is the amount of heat that is required to evaporate 1.0 g of liquid to gas form at its normal boiling point.

Answer 18

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heat of vaporization is the amount of heat required to evaporate 1.0 g of liquid to gas at its normal boiling point. The amount of heat is required to convert 1.0 g of solid to its liquid form is called as Heat of fusion.

Answer 19

Interpretation Introduction

(g)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heat of vaporization is the amount of heat required to evaporate 1.0 g of liquid to gas at its normal boiling point. The amount of heat is required to convert 1.0 g of solid to its liquid form is called as Heat of fusion.

Answer 20

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. Crystallization is a process in which liquid is cooled to temperature to form a solid form of it.

Answer 21

Interpretation Introduction

(h)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. Crystallization is a process in which liquid is cooled to temperature to form a solid form of it.

Answer 22

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Exothermic process is a process during which system releases energy whereas endothermic process is a process during which system absorbs energy.

Answer 23

Interpretation Introduction

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Exothermic process is a process during which system releases energy whereas endothermic process is a process during which system absorbs energy.

Answer 24

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. This liquid formed from solid have the same molecules in it. For getting solid once again, liquid is required to be cooled back.

Answer 25

Interpretation Introduction

(j)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Melting is a process in which the solid is heated to its melting point and gets converted into liquid. This liquid formed from solid have the same molecules in it. For getting solid once again, liquid is required to be cooled back.

Answer 26

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Sublimation is a process in which a direct formation of gas form from solid form of substance occurs.

Answer 27

Interpretation Introduction

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Sublimation is a process in which a direct formation of gas form from solid form of substance occurs.

Answer 28

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Answer 39

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

Concept explainers

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to heating curve, heat of fusion is a heat applied to a 1.0 g of solid substance to convert it in to its liquid phase.

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heating curve describes that the amount of heat required to vaporize 1.0 g of liquid at its normal boiling point is called as Heat of vaporization.

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The heat of vaporization is the amount of heat that is required to evaporate 1.0 g of liquid to gas form at its normal boiling point.

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Exothermic process is a process during which system releases energy whereas endothermic process is a process during which system absorbs energy.

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Sublimation is a process in which a direct formation of gas form from solid form of substance occurs.

Chapter 5 Solutions

Concept explainers

(d) Interpretation: To justify whether the given statement is true or false. Concept Introduction: According to heating curve, heat of fusion is a heat applied to a 1.0 g of solid substance to convert it in to its liquid phase.

(e) Interpretation: To justify whether the given statement is true or false. Concept Introduction: Heating curve describes that the amount of heat required to vaporize 1.0 g of liquid at its normal boiling point is called as Heat of vaporization.

(f) Interpretation: To justify whether the given statement is true or false. Concept Introduction: The heat of vaporization is the amount of heat that is required to evaporate 1.0 g of liquid to gas form at its normal boiling point.

(h) Interpretation: To justify whether the given statement is true or false. Concept Introduction: Melting is a process in which the solid is heated to its melting point and gets converted into liquid. Crystallization is a process in which liquid is cooled to temperature to form a solid form of it.

(i) Interpretation: To justify whether the given statement is true or false. Concept Introduction: Exothermic process is a process during which system releases energy whereas endothermic process is a process during which system absorbs energy.

(k) Interpretation: To justify whether the given statement is true or false. Concept Introduction: Sublimation is a process in which a direct formation of gas form from solid form of substance occurs.

Chapter 5 Solutions

(d)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

According to heating curve, heat of fusion is a heat applied to a 1.0 g of solid substance to convert it in to its liquid phase.

(e)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Heating curve describes that the amount of heat required to vaporize 1.0 g of liquid at its normal boiling point is called as Heat of vaporization.

(f)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

The heat of vaporization is the amount of heat that is required to evaporate 1.0 g of liquid to gas form at its normal boiling point.

(i)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Exothermic process is a process during which system releases energy whereas endothermic process is a process during which system absorbs energy.

(k)

Interpretation:

To justify whether the given statement is true or false.

Concept Introduction:

Sublimation is a process in which a direct formation of gas form from solid form of substance occurs.