Question 1

The shape of a liquid's meniscus is determined by ________.

Accepted Answer

A) the viscosity of the liquid 
B) the type of material the container is made of 
C) the relative magnitudes of cohesive forces in the liquid and adhesive forces between the liquid and its container 
D) the amount of hydrogen bonding in the liquid 
E) the volume of the liquid 
A) the viscosity of the liquid 
B) the type of material the container is made of 
C) the relative magnitudes of cohesive forces in the liquid and adhesive forces between the liquid and its container 
D) the amount of hydrogen bonding in the liquid 
E) the volume of the liquid

Question 2

Hydrogen bonding is a special case of ________.

Accepted Answer

A) London-dispersion forces 
B) ion-dipole attraction 
C) dipole-dipole attractions 
D) ion-ion interactions 
E) none of the above 
A) London-dispersion forces 
B) ion-dipole attraction 
C) dipole-dipole attractions 
D) ion-ion interactions 
E) none of the above

Question 3

The substance with the largest heat of vaporization is ________.

Accepted Answer

A) I2 
B) Br2 
C) Cl2 
D) F2 
E) O2 
A) I2 
B) Br2 
C) Cl2 
D) F2 
E) O2

Question 4

As a gaseous element condenses, the atoms become ________ and they have ________ attraction for one another.

Accepted Answer

A) less separated, more 
B) less separated, less 
C) more separated, more 
D) more separated, less 
E) smaller, lesser 
A) less separated, more 
B) less separated, less 
C) more separated, more 
D) more separated, less 
E) smaller, lesser

Question 5

The strongest interparticle attractions exist between particles of a ________, and the weakest interparticle attractions exist between particles of a ________.

Accepted Answer

A) solid, liquid 
B) solid, gas 
C) liquid, gas 
D) liquid, solid 
E) gas, solid 
A) solid, liquid 
B) solid, gas 
C) liquid, gas 
D) liquid, solid 
E) gas, solid

Question 6

For a given substance that exhibits liquid-crystalline properties, the liquid-crystalline state exists ________.

Accepted Answer

A) at one particular temperature below the melting point of the solid 
B) in a range of temperatures below the melting point of the solid 
C) at one particular temperature above the melting point of the solid 
D) in a range of temperatures above the melting point of the solid 
E) in a range of temperatures from below the melting point to above the melting point 
A) at one particular temperature below the melting point of the solid 
B) in a range of temperatures below the melting point of the solid 
C) at one particular temperature above the melting point of the solid 
D) in a range of temperatures above the melting point of the solid 
E) in a range of temperatures from below the melting point to above the melting point

Question 7

Based on molecular mass and dipole moment of the five compounds in the table below, which should have the highest boiling point?

Accepted Answer

A) CH3CH2CH3 
B) CH3OCH3 
C) CH3Cl 
D) CH3CHO 
E) CH3CN 
A) CH3CH2CH3 
B) CH3OCH3 
C) CH3Cl 
D) CH3CHO 
E) CH3CN

Question 8

A gas is ________ and assumes ________ of its container, whereas a liquid is ________ and assumes ________ of its container.

Accepted Answer

A) compressible, the volume and shape, not compressible, the shape of a portion 
B) compressible, the shape, not compressible, the volume and shape 
C) compressible, the volume and shape, compressible, the volume 
D) condensed, the volume and shape, condensed, the volume and shape 
E) condensed, the shape, compressible, the volume and shape 
A) compressible, the volume and shape, not compressible, the shape of a portion 
B) compressible, the shape, not compressible, the volume and shape 
C) compressible, the volume and shape, compressible, the volume 
D) condensed, the volume and shape, condensed, the volume and shape 
E) condensed, the shape, compressible, the volume and shape

Question 9

Which one of the following derivatives of methane has the highest boiling point?

Accepted Answer

A) CI4 
B) CBr4 
C) CCl4 
D) CF4 
E) CH4 
A) CI4 
B) CBr4 
C) CCl4 
D) CF4 
E) CH4

Question 10

The initial discovery of a liquid crystal resulted from studies on what compound?

Accepted Answer

cholestery

Question 11

On a phase diagram, the critical pressure is ________.

Accepted Answer

A) the pressure required to melt a solid 
B) the pressure below which a substance is a solid at all temperatures 
C) the pressure above which a substance is a liquid at all temperatures 
D) the pressure at which a liquid changes to a gas 
E) the pressure required to liquefy a gas at its critical temperature 
A) the pressure required to melt a solid 
B) the pressure below which a substance is a solid at all temperatures 
C) the pressure above which a substance is a liquid at all temperatures 
D) the pressure at which a liquid changes to a gas 
E) the pressure required to liquefy a gas at its critical temperature

Question 12

-Based on the figure above, the boiling point of ethyl alcohol under an external pressure of 0.658 atm is ________ °C.

Accepted Answer

A) 20 
B) 40 
C) 60 
D) 80 
E) 70 
A) 20 
B) 40 
C) 60 
D) 80 
E) 70

Question 13

A substance that expands to fill its container yet has a density approaching that of a liquid, and that can behave as a solvent is called a(n)________.

Accepted Answer

A) plasma 
B) gas 
C) liquid 
D) amorphous solid 
E) supercritical fluid and gas 
A) plasma 
B) gas 
C) liquid 
D) amorphous solid 
E) supercritical fluid and gas

Question 14

In general, the vapor pressure of a substance increases as ________ increases.

Accepted Answer

A) surface tension 
B) molecular weight 
C) hydrogen bonding 
D) viscosity 
E) temperature 
A) surface tension 
B) molecular weight 
C) hydrogen bonding 
D) viscosity 
E) temperature

Question 15

Some things take longer to cook at high altitudes than at low altitudes because ________.

Accepted Answer

A) water boils at a lower temperature at high altitude than at low altitude 
B) water boils at a higher temperature at high altitude than at low altitude 
C) heat isn't conducted as well in low density air 
D) natural gas flames don't burn as hot at high altitudes 
E) there is a higher moisture content in the air at high altitude 
A) water boils at a lower temperature at high altitude than at low altitude 
B) water boils at a higher temperature at high altitude than at low altitude 
C) heat isn't conducted as well in low density air 
D) natural gas flames don't burn as hot at high altitudes 
E) there is a higher moisture content in the air at high altitude

Question 16

Which one of the following substances will not have hydrogen bonding as one of its intermolecular forces?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 17

Cholesteric liquid crystals are colored because ________.

Accepted Answer

A) each molecule is a chromophore 
B) of the slight twist between layers 
C) of the large spacing between layers 
D) of the large number of conjugated bonds 
E) all of the molecules contain multiple benzene rings 
A) each molecule is a chromophore 
B) of the slight twist between layers 
C) of the large spacing between layers 
D) of the large number of conjugated bonds 
E) all of the molecules contain multiple benzene rings

Question 18

Of the following, ________ should have the highest critical temperature.

Accepted Answer

A) CBr4 
B) CCl4 
C) CF4 
D) CH4 
E) H2 
A) CBr4 
B) CCl4 
C) CF4 
D) CH4 
E) H2

Question 19

The enthalpy change for converting 10.0 g of ice at -50.0 °C to water at 50.0 °C is ________ kJ. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K, respectively. For H2O, ΔHfus = 6.01 kJ/mol, and ΔHvap = 40.67 kJ/mol.

Accepted Answer

A) 12.28 
B) 4.38 
C) 3138 
D) 6.47 
E) 9.15 
A) 12.28 
B) 4.38 
C) 3138 
D) 6.47 
E) 9.15

Question 20

-According to the phase diagram shown above, the normal boiling point of this substance is ________ °C.

Accepted Answer

A) -3 
B) 10 
C) 29 
D) 38 
E) 0 
A) -3 
B) 10 
C) 29 
D) 38 
E) 0

Exam 11: Liquids and Intermolecular Forces

The shape of a liquid's meniscus is determined by ________.

Hydrogen bonding is a special case of ________.

The substance with the largest heat of vaporization is ________.

As a gaseous element condenses, the atoms become ________ and they have ________ attraction for one another.

The strongest interparticle attractions exist between particles of a ________, and the weakest interparticle attractions exist between particles of a ________.

For a given substance that exhibits liquid-crystalline properties, the liquid-crystalline state exists ________.

Based on molecular mass and dipole moment of the five compounds in the table below, which should have the highest boiling point?

A gas is ________ and assumes ________ of its container, whereas a liquid is ________ and assumes ________ of its container.

Which one of the following derivatives of methane has the highest boiling point?

The initial discovery of a liquid crystal resulted from studies on what compound?

On a phase diagram, the critical pressure is ________.

-Based on the figure above, the boiling point of ethyl alcohol under an external pressure of 0.658 atm is ________ °C.

A substance that expands to fill its container yet has a density approaching that of a liquid, and that can behave as a solvent is called a(n)________.

In general, the vapor pressure of a substance increases as ________ increases.

Some things take longer to cook at high altitudes than at low altitudes because ________.

Which one of the following substances will not have hydrogen bonding as one of its intermolecular forces?

Cholesteric liquid crystals are colored because ________.

Of the following, ________ should have the highest critical temperature.

The enthalpy change for converting 10.0 g of ice at -50.0 °C to water at 50.0 °C is ________ kJ. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K, respectively. For H2O, ΔHfus = 6.01 kJ/mol, and ΔHvap = 40.67 kJ/mol.

-According to the phase diagram shown above, the normal boiling point of this substance is ________ °C.

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

As a gaseous element condenses, the atoms become and they have attraction for one another.

The strongest interparticle attractions exist between particles of a , and the weakest interparticle attractions exist between particles of a .

A gas is and assumes of its container, whereas a liquid is and assumes of its container.

The enthalpy change for converting 10.0 g of ice at -50.0 °C to water at 50.0 °C is ________ kJ. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K, respectively. For H₂O, ΔH_fus = 6.01 kJ/mol, and ΔH_vap = 40.67 kJ/mol.