Question 1

You can increase the vapor pressure of a liquid by:

Accepted Answer

A) increasing temperature. 
B) increasing the viscosity. 
C) establishing dynamic equilibrium. 
D) using a nonvolatile compound. 
E) all of the above 
A) increasing temperature. 
B) increasing the viscosity. 
C) establishing dynamic equilibrium. 
D) using a nonvolatile compound. 
E) all of the above

Question 2

A mothball can change directly from its solid phase to its gaseous phase.This process is known as:

Accepted Answer

A) deposition. 
B) melting. 
C) condensation. 
D) sublimation. 
E) none of the above 
A) deposition. 
B) melting. 
C) condensation. 
D) sublimation. 
E) none of the above

Question 3

Dry ice (solid CO2)is which type of solid?

Accepted Answer

A) molecular solid 
B) ionic solid 
C) covalent atomic solid 
D) nonbonding atomic solid 
E) metallic atomic solid 
A) molecular solid 
B) ionic solid 
C) covalent atomic solid 
D) nonbonding atomic solid 
E) metallic atomic solid

Question 4

Atoms in a solid are always arranged in a well-ordered pattern.

Accepted Answer

A) True 
 B)False

Question 5

Liquids can be easily compressed.

Accepted Answer

A) True 
 B)False

Question 6

When you make ice cubes:

Accepted Answer

A) it is an endothermic process. 
B) it is an exothermic process. 
C) the heat of vaporization must be removed. 
D) the process is referred to scientifically as sublimation. 
E) none of the above 
A) it is an endothermic process. 
B) it is an exothermic process. 
C) the heat of vaporization must be removed. 
D) the process is referred to scientifically as sublimation. 
E) none of the above

Question 7

How many kJ of heat are needed to completely vaporize 3.30 moles of H2O? The heat of vaporization for water at the boiling point is 40.6 kJ/mole.

Accepted Answer

A) 12.3 
B) 134 
C) 67.0 
D) 2.26 
E) none of the above 
A) 12.3 
B) 134 
C) 67.0 
D) 2.26 
E) none of the above

Question 8

Which state of matter has a low density and is easily compressed?

Accepted Answer

A) solids 
B) liquids 
C) gases 
D) both solids and liquids 
E) none of the above 
A) solids 
B) liquids 
C) gases 
D) both solids and liquids 
E) none of the above

Question 9

Which noble gas has the highest boiling point?

Accepted Answer

A) He 
B) Ne 
C) Ar 
D) Kr 
E) Xe 
A) He 
B) Ne 
C) Ar 
D) Kr 
E) Xe

Question 10

Evaporation and condensation are opposite processes.

Accepted Answer

A) True 
 B)False

Question 11

What are the principal forces holding ice together?

Accepted Answer

A) dispersion forces only 
B) electrostatic attraction 
C) intermolecular forces 
D) sea of electrons 
E) none of the above 
A) dispersion forces only 
B) electrostatic attraction 
C) intermolecular forces 
D) sea of electrons 
E) none of the above

Question 12

Sublimation is the process of a liquid being converted directly to a gas.

Accepted Answer

A) True 
 B)False

Question 13

In northern climates,it is common to have a layer of frost form on cars that have been out overnight in the winter.During the day the frost layer disappears despite its temperature remaining below freezing.How?

Accepted Answer

A) The frost melts due to the sun heating the surface of the car above the melting point. 
B) The frost evaporates due to the sun heating the solid. 
C) The frost cycles as does the saturation level of moisture in the winter air does from night to day. 
D) The frost sublimes directly from solid ice to water vapor. 
E) none of the above 
A) The frost melts due to the sun heating the surface of the car above the melting point. 
B) The frost evaporates due to the sun heating the solid. 
C) The frost cycles as does the saturation level of moisture in the winter air does from night to day. 
D) The frost sublimes directly from solid ice to water vapor. 
E) none of the above

Question 14

Intermolecular forces are responsible for:

Accepted Answer

A) the taste sensations. 
B) the shape of protein molecules. 
C) the function of DNA. 
D) the existence of liquids and solids. 
E) all of the above 
A) the taste sensations. 
B) the shape of protein molecules. 
C) the function of DNA. 
D) the existence of liquids and solids. 
E) all of the above

Question 15

The heat of fusion for water is significantly more than the heat of vaporization for water because fusion requires complete separation of one molecule from another.

Accepted Answer

A) True 
 B)False

Question 16

Liquids that are viscous flow more slowly than liquids that are not viscous.

Accepted Answer

A) True 
 B)False

Question 17

Ice is an example of a molecular solid.

Accepted Answer

A) True 
 B)False

Question 18

Evaporation is an endothermic process.

Accepted Answer

A) True 
 B)False

Question 19

If we supply additional heat to a solid in equilibrium with its liquid at the melting point,the thermal energy added is used to:

Accepted Answer

A) overcome the intermolecular forces that hold the solid together. 
B) expand the solid. 
C) change the liquid back to solid. 
D) change solid to liquid. 
E) raise the temperature of the solid above its melting point. 
A) overcome the intermolecular forces that hold the solid together. 
B) expand the solid. 
C) change the liquid back to solid. 
D) change solid to liquid. 
E) raise the temperature of the solid above its melting point.

Question 20

Which statement about surface tension is FALSE?

Accepted Answer

A) Liquids tend to minimize their surface area. 
B) Molecules on the surface of the liquid have fewer molecules to interact with. 
C) Increased intermolecular forces increase surface tension. 
D) Items with densities lower than water will sink due to surface tension. 
E) All of the above statements are true. 
A) Liquids tend to minimize their surface area. 
B) Molecules on the surface of the liquid have fewer molecules to interact with. 
C) Increased intermolecular forces increase surface tension. 
D) Items with densities lower than water will sink due to surface tension. 
E) All of the above statements are true.

You can increase the vapor pressure of a liquid by:

A mothball can change directly from its solid phase to its gaseous phase.This process is known as:

Dry ice (solid CO₂)is which type of solid?

Atoms in a solid are always arranged in a well-ordered pattern.

Liquids can be easily compressed.

When you make ice cubes:

How many kJ of heat are needed to completely vaporize 3.30 moles of H₂O? The heat of vaporization for water at the boiling point is 40.6 kJ/mole.

Which state of matter has a low density and is easily compressed?

Which noble gas has the highest boiling point?

Evaporation and condensation are opposite processes.

What are the principal forces holding ice together?

Sublimation is the process of a liquid being converted directly to a gas.

In northern climates,it is common to have a layer of frost form on cars that have been out overnight in the winter.During the day the frost layer disappears despite its temperature remaining below freezing.How?

Intermolecular forces are responsible for:

The heat of fusion for water is significantly more than the heat of vaporization for water because fusion requires complete separation of one molecule from another.

Liquids that are viscous flow more slowly than liquids that are not viscous.

Ice is an example of a molecular solid.

Evaporation is an endothermic process.

If we supply additional heat to a solid in equilibrium with its liquid at the melting point,the thermal energy added is used to:

Which statement about surface tension is FALSE?

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Exam 12: Liquids,solids,and Intermolecular Forces

You can increase the vapor pressure of a liquid by:

A mothball can change directly from its solid phase to its gaseous phase.This process is known as:

Dry ice (solid CO2)is which type of solid?

Atoms in a solid are always arranged in a well-ordered pattern.

Liquids can be easily compressed.

When you make ice cubes:

How many kJ of heat are needed to completely vaporize 3.30 moles of H2O? The heat of vaporization for water at the boiling point is 40.6 kJ/mole.

Which state of matter has a low density and is easily compressed?

Which noble gas has the highest boiling point?

Evaporation and condensation are opposite processes.

What are the principal forces holding ice together?

Sublimation is the process of a liquid being converted directly to a gas.

In northern climates,it is common to have a layer of frost form on cars that have been out overnight in the winter.During the day the frost layer disappears despite its temperature remaining below freezing.How?

Intermolecular forces are responsible for:

The heat of fusion for water is significantly more than the heat of vaporization for water because fusion requires complete separation of one molecule from another.

Liquids that are viscous flow more slowly than liquids that are not viscous.

Ice is an example of a molecular solid.

Evaporation is an endothermic process.

If we supply additional heat to a solid in equilibrium with its liquid at the melting point,the thermal energy added is used to:

Which statement about surface tension is FALSE?

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Dry ice (solid CO₂)is which type of solid?

How many kJ of heat are needed to completely vaporize 3.30 moles of H₂O? The heat of vaporization for water at the boiling point is 40.6 kJ/mole.