Introductory Chemistry: A Foundation
9th Edition
ISBN: 9781337399425
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Question
Chapter 14, Problem 4ALQ
Interpretation Introduction
Interpretation:
Whether the nature of intermolecular forces change while phase change is taking place must be explained.
What causes a substance to undergo a phase change must also be explained?
Concept Introduction:
Different substances have different physical states due to difference intermolecular forces.
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Students have asked these similar questions
Explain the concept of Intermolecular Forces ?
The molar heat of fusion of aluminum metal is 10.79 kJ/mol, whereas its heat of vaporization is 293.4 kJ/mol.
a. Why is the heat of fusion of aluminum so much smaller than the heat of vaporization?
Aluminum vaporizes at higher temperatures.
The forces broken when aluminum evaporates are weaker than the forces broken when it melts.
More energy is required to separate the atoms of the liquid into the freely moving and widely separated atoms of the vapor/gas.
b. What quantity of heat would be required to vaporize 5.84 g of aluminum at its normal boiling point?
kJ
c. What quantity of heat would be evolved if 8.74 g of liquid aluminum freezes at its normal freezing point?
kJ
d. What quantity of heat would be required to melt 0.160 mol of aluminum at its normal melting point?
kJ
How do intermolecular forces determine the physical properties of a molecule?
Chapter 14 Solutions
Introductory Chemistry: A Foundation
Ch. 14.2 - trong>Exercise 14.1 Calculate the total energy...Ch. 14.3 - Prob. 1CTCh. 14.6 - trong>Exercise 14.2 Name the type of crystalline...Ch. 14 - ou seal a container half-filled with water. Which...Ch. 14 - xplain the following: You add 100mLof water to a...Ch. 14 - Prob. 3ALQCh. 14 - Prob. 4ALQCh. 14 - Prob. 5ALQCh. 14 - Prob. 6ALQCh. 14 - Prob. 7ALQ
Ch. 14 - ow do the following physical properties depend on...Ch. 14 - ook at Fig. 14.2. Why doesn't temperature increase...Ch. 14 - Prob. 10ALQCh. 14 - Prob. 11ALQCh. 14 - Prob. 12ALQCh. 14 - Prob. 13ALQCh. 14 - Prob. 14ALQCh. 14 - Prob. 15ALQCh. 14 - True or false? Methane (CH4) is more likely In...Ch. 14 - Prob. 17ALQCh. 14 - Prob. 18ALQCh. 14 - Prob. 19ALQCh. 14 - Which would you predict should be larger for a...Ch. 14 - Prob. 21ALQCh. 14 - Prob. 22ALQCh. 14 - Prob. 23ALQCh. 14 - ases have (higher/lower) densities than liquids or...Ch. 14 - Prob. 2QAPCh. 14 - Prob. 3QAPCh. 14 - he enthalpy (H)of vaporization of water is about...Ch. 14 - Prob. 5QAPCh. 14 - Prob. 6QAPCh. 14 - Prob. 7QAPCh. 14 - Prob. 8QAPCh. 14 - Prob. 9QAPCh. 14 - Prob. 10QAPCh. 14 - Prob. 11QAPCh. 14 - The energy required to melt 1 mole of a solid is...Ch. 14 - The following data have ban collected for...Ch. 14 - The molar heat of fusion of aluminum metal is...Ch. 14 - Prob. 15QAPCh. 14 - Prob. 16QAPCh. 14 - The molar heats of fusion and vaporization for...Ch. 14 - It requires 113Jto melt 1.00gof sodium metal at...Ch. 14 - Consider the iodine monochloride molecule, ICI....Ch. 14 - Prob. 20QAPCh. 14 - Prob. 21QAPCh. 14 - Prob. 22QAPCh. 14 - Prob. 23QAPCh. 14 - Prob. 24QAPCh. 14 - What type of intermolecular forces is active in...Ch. 14 - Prob. 26QAPCh. 14 - Prob. 27QAPCh. 14 - The heats of fusion of three substances are listed...Ch. 14 - When dry ammonia gas (NH3)is bubbled into a...Ch. 14 - Prob. 30QAPCh. 14 - Prob. 31QAPCh. 14 - If you've ever opened a bottle of rubbing alcohol...Ch. 14 - Prob. 33QAPCh. 14 - Prob. 34QAPCh. 14 - Which substance in each pair would be expected to...Ch. 14 - Which substance in each pair would be expected to...Ch. 14 - Prob. 37QAPCh. 14 - Two molecules that contain the same number of each...Ch. 14 - Prob. 39QAPCh. 14 - Prob. 40QAPCh. 14 - How do ionic solids differ in structure from...Ch. 14 - A common prank on college campuses is to switch...Ch. 14 - Prob. 43QAPCh. 14 - What types of forces exist between the individual...Ch. 14 - Prob. 45QAPCh. 14 - Prob. 46QAPCh. 14 - Prob. 47QAPCh. 14 - Prob. 48QAPCh. 14 - Prob. 49QAPCh. 14 - Prob. 50QAPCh. 14 - Prob. 51APCh. 14 - Prob. 52APCh. 14 - Prob. 53APCh. 14 - Prob. 54APCh. 14 - Prob. 55APCh. 14 - Prob. 56APCh. 14 - Prob. 57APCh. 14 - Prob. 58APCh. 14 - Prob. 59APCh. 14 - Prob. 60APCh. 14 - Given the densities and conditions of ice, liquid...Ch. 14 - Prob. 62APCh. 14 - Which of the substances in each of the following...Ch. 14 - Prob. 64APCh. 14 - Prob. 65APCh. 14 - Prob. 66APCh. 14 - Prob. 67APCh. 14 - Prob. 68APCh. 14 - Describe, on both a microscopic and a macroscopic...Ch. 14 - Cake mixes and other packaged foods that require...Ch. 14 - Prob. 71APCh. 14 - Prob. 72APCh. 14 - The molar heat of vaporization of carbon...Ch. 14 - Prob. 74APCh. 14 - Prob. 75APCh. 14 - Prob. 76APCh. 14 - Prob. 77APCh. 14 - Prob. 78APCh. 14 - Prob. 79APCh. 14 - Prob. 80APCh. 14 - Prob. 81APCh. 14 - Prob. 82APCh. 14 - Prob. 83APCh. 14 - Prob. 84APCh. 14 - Describe in detail the microscopic processes that...Ch. 14 - Prob. 86APCh. 14 - Formaldehyde has the formula CH2O, where C is the...Ch. 14 - Prob. 88APCh. 14 - Prob. 89APCh. 14 - Describe, on a microscopic basis, the processes of...Ch. 14 - Prob. 91APCh. 14 - Prob. 92APCh. 14 - Which of the following compound(s) exhibit only...Ch. 14 - Which of the following statements about...Ch. 14 - Prob. 95CPCh. 14 - Prob. 96CPCh. 14 - Prob. 97CPCh. 14 - Which of the following statements is(are) true?...
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Similar questions
- The types of intermolecular forces in a substance are identical whether it is a solid, a liquid, or a gas. Why then does a substance change phase from a gas to a liquid or to a solid?arrow_forwardIntermolecular forces are the attractive forces between atoms within a compound. O True O Falsearrow_forwardDefine the Physical Properties of intermolecular forces ?arrow_forward
- What causes dipole-dipole interactions?arrow_forwardConsider the difference between boiling water and boiling oil. Water boils at 100°C, while oil requires a much higher temperature. This difference is due to the intermolecular forces between the molecules. Water molecules are held together by hydrogen bonds, which are stronger than the Van der Waals forces in oil. As a result, more energy is needed to break the bonds in water, leading to its lower boiling point. Which statement best explains the effect of intermolecular forces on boiling points? A) Stronger intermolecular forces result in higher boiling points. B) All liquids boil at the same temperature regardless of intermolecular forces. C) Weaker intermolecular forces result in higher boiling points. D) Intermolecular forces have no effect on boiling points.arrow_forward1. Does the diagram best describe a crystalline solid, a liquid, or a gas? Explain. 2. In terms of the arrangement and freedom of motion of the molecules, how are the nematicliquid crystalline phase and an ordinary liquid phase similar? How are they different? 3. It often happens that a substance possessing a smectic liquid crystalline phase just abovethe melting point passes into a nematic liquid crystalline phase at a higher temperature.Account for the type of behavior.arrow_forward
- Give 1 example of each Intermolecular Forces (be unique) -name of the compound, chemical formula structure bondingarrow_forward4. The specific heat capacity of silver is 0,235J/g⋅K. Its melting point is 962°C, and its heat of fusion is 11,3 kJ/mol. What quantity of heat, in joules, is required to change 5,00 g of silver from a solid at 25°C to a liquid at 962°C?arrow_forwardIllustrate how the Intermolecular Forces could differ from being Solid, Liquid, and Gas? Which of the discussed Intermolecular forces does each of these matter states are usually dependent?arrow_forward
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