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Exam 11: Liquids, Solids, and Intermolecular Forces

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Exam 1: Matter, Measurement, and Problem Solving120 Questionsadd course
Exam 2: Atoms and Elements116 Questionsadd course
Exam 3: Molecules, Compounds and Chemical Equations144 Questionsadd course
Exam 4: Chemical Quantities and Aqueous Reactions199 Questionsadd course
Exam 5: Gases157 Questionsadd course
Exam 6: Thermochemistry110 Questionsadd course
Exam 7: The Quantum-Mechanical Model of the Atom100 Questionsadd course
Exam 8: Periodic Properties of the Elements120 Questionsadd course
Exam 9: Chemical Bonding I: Lewis Theory125 Questionsadd course
Exam 10: Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and109 Questionsadd course
Exam 11: Liquids, Solids, and Intermolecular Forces123 Questionsadd course
Exam 12: Solutions127 Questionsadd course
Exam 13: Chemical Kinetics125 Questionsadd course
Exam 14: Chemical Equilibrium112 Questionsadd course
Exam 15: Acids and Bases126 Questionsadd course
Exam 16: Aqueous Ionic Equilibrium148 Questionsadd course
Exam 17: Free Energy and Thermodynamics103 Questionsadd course
Exam 18: Electrochemistry115 Questionsadd course
Exam 19: Radioactivity and Nuclear Chemistry105 Questionsadd course
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Ethanol (C2H5OH)melts at -114°C.The enthalpy of fusion is 5.02 kJ/mol.The specific heats of solid and liquid ethanol are 0.97 J/g∙K and 2.3 J/g∙K,respectively.How much heat (kJ)is needed to convert 25.0 g of solid ethanol at -135°C to liquid ethanol at -50°C?

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Question 21

Which statement is correct?

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Question 22

Why is the ΔHvap higher than ΔHfus for any given compound?

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Question 23

Explain why the bolling point of water is so much higher than other compounds of similar molecular weight.

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Question 24

Define sublimation.

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Question 25

Based on the figure above,the boiling point of ethyl alcohol under an external pressure of 0.0724 atm is approximately ________°C. Based on the figure above,the boiling point of ethyl alcohol under an external pressure of 0.0724 atm is approximately ________°C.

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Question 26

Match the following. -CH3CH3

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Question 27

Identify the weakest type of intermolecular forces.

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Question 28

Choose the substance with the highest boiling point.

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Question 29

The enthalpy change for converting 1.00 mol of ice at -50.0°C to water at 70.0°C is The enthalpy change for converting 1.00 mol of ice at -50.0°C to water at 70.0°C is The specific heats of ice,water,and steam are And Respectively.For H<sub>2</sub>O,∆H<sub>fus </sub>= 6.01 kJ/mol,and ∆H<sub>vap </sub>= 40.67 kJ/mol. The specific heats of ice,water,and steam are The enthalpy change for converting 1.00 mol of ice at -50.0°C to water at 70.0°C is The specific heats of ice,water,and steam are And Respectively.For H<sub>2</sub>O,∆H<sub>fus </sub>= 6.01 kJ/mol,and ∆H<sub>vap </sub>= 40.67 kJ/mol. The enthalpy change for converting 1.00 mol of ice at -50.0°C to water at 70.0°C is The specific heats of ice,water,and steam are And Respectively.For H<sub>2</sub>O,∆H<sub>fus </sub>= 6.01 kJ/mol,and ∆H<sub>vap </sub>= 40.67 kJ/mol. And The enthalpy change for converting 1.00 mol of ice at -50.0°C to water at 70.0°C is The specific heats of ice,water,and steam are And Respectively.For H<sub>2</sub>O,∆H<sub>fus </sub>= 6.01 kJ/mol,and ∆H<sub>vap </sub>= 40.67 kJ/mol. Respectively.For H2O,∆Hfus = 6.01 kJ/mol,and ∆Hvap = 40.67 kJ/mol.

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Question 30

Which of the following forms an ionic solid?

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Question 31

Which of the following statements is not correct regarding rate of vaporization of a liquid?

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Question 32

In the phase diagram,what is the approximate critical temperature? In the phase diagram,what is the approximate critical temperature?

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Question 33

Identify the phase in which the water molecules are closest together.

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Question 34

Lithium crystallizes in a body-centered cubic structure.What is the coordination number of each atom?

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Question 35

Define fusion.

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Question 36

If all of the following are in solid phase,which is considered a non-bonding atomic solid?

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Question 37

Give the change in condition to go from a liquid to a gas.

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Question 38

Describe the difference between the conduction band and the valence band.

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Question 39

Based on the figure above,the boiling point of water under an external pressure of 0.316 atm is approximately ________°C. Based on the figure above,the boiling point of water under an external pressure of 0.316 atm is approximately ________°C.

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Question 40
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