Question 1

Which intermolecular force is due to the formation of an instantaneous dipole?

Accepted Answer

A) dispersion forces 
B) dipole-dipole forces 
C) hydrogen bonding 
D) X-forces 
E) none of the above 
A) dispersion forces 
B) dipole-dipole forces 
C) hydrogen bonding 
D) X-forces 
E) none of the above

Question 2

Which intermolecular force found in  
 
Is the strongest?

Accepted Answer

A) dispersion forces 
B) dipole-dipole forces 
C) hydrogen bonding 
D) X-forces 
E) none of the above 
A) dispersion forces 
B) dipole-dipole forces 
C) hydrogen bonding 
D) X-forces 
E) none of the above

Question 3

The rate of evaporation will increase if you pour a liquid out onto a large surface.

Accepted Answer

A) True 
 B)False

Question 4

Silicon 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 5

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.

Question 6

When sufficient quantity of heat has been added to reach the boiling point of a solution,what happens to any additional heat added?

Accepted Answer

A) Additional heat is used to evaporate the liquid as the process is endothermic and requires continued input of energy. 
B) Additional heat raises the temperature of the liquid which in turn increases the rate at which boiling occurs. 
C) Additional heat lowers the intermolecular forces of the liquid which in turn increases the volatility of the liquid. 
D) Additional heat alters the viscosity and the surface tension of the liquid which raises the vapor pressure and increases the boiling point which is why you must continually heat the solution. 
E) None of the above are correct statements. 
A) Additional heat is used to evaporate the liquid as the process is endothermic and requires continued input of energy. 
B) Additional heat raises the temperature of the liquid which in turn increases the rate at which boiling occurs. 
C) Additional heat lowers the intermolecular forces of the liquid which in turn increases the volatility of the liquid. 
D) Additional heat alters the viscosity and the surface tension of the liquid which raises the vapor pressure and increases the boiling point which is why you must continually heat the solution. 
E) None of the above are correct statements.

Question 7

Atomic solids,such as graphite,have a weak dispersion force holding them together.

Accepted Answer

A) True 
 B)False

Question 8

The melting point is reached when sufficient energy has been added to the molecules in a substance to overcome the intermolecular forces holding them stationary.

Accepted Answer

A) True 
 B)False

Question 9

Increasing the intermolecular forces of a liquid will do which of the following?

Accepted Answer

A) increase the viscosity 
B) decrease the evaporation rate 
C) increase the surface tension 
D) decrease the vapor pressure 
E) all of the above 
A) increase the viscosity 
B) decrease the evaporation rate 
C) increase the surface tension 
D) decrease the vapor pressure 
E) all of the above

Question 10

Compounds that are similar to water in molecular mass all exist as solids.

Accepted Answer

A) True 
 B)False

Question 11

Gases typically have high densities in comparison to solids.

Accepted Answer

A) True 
 B)False

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

How many kJ of heat are needed to completely melt 95.3 g of copper metal,given that the metal is at its melting point? The heat of fusion for this metal is 13.1

Accepted Answer

A) 19.6 
B) 43.0 
C) 1250 
D) 0.114 
E) none of the above 
A) 19.6 
B) 43.0 
C) 1250 
D) 0.114 
E) none of the above

Question 14

Which molecule below has hydrogen bonding?

Accepted Answer

A) C   
B) HCl 
C)    
D)   
C
  
OH 
E) all of the above 
A) C   
B) HCl 
C)    
D)   
C
  
OH 
E) all of the above

Which intermolecular force is due to the formation of an instantaneous dipole?

Which intermolecular force found in Is the strongest?

The rate of evaporation will increase if you pour a liquid out onto a large surface.

Silicon is which type of solid?

Which statement about surface tension is FALSE?

When sufficient quantity of heat has been added to reach the boiling point of a solution,what happens to any additional heat added?

Atomic solids,such as graphite,have a weak dispersion force holding them together.

The melting point is reached when sufficient energy has been added to the molecules in a substance to overcome the intermolecular forces holding them stationary.

Increasing the intermolecular forces of a liquid will do which of the following?

Compounds that are similar to water in molecular mass all exist as solids.

Gases typically have high densities in comparison to solids.

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

How many kJ of heat are needed to completely melt 95.3 g of copper metal,given that the metal is at its melting point? The heat of fusion for this metal is 13.1

Which molecule below has hydrogen bonding?

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Exam 12: Liquids,solids,and Intermolecular Forces

Which intermolecular force is due to the formation of an instantaneous dipole?

Which intermolecular force found in Is the strongest?

The rate of evaporation will increase if you pour a liquid out onto a large surface.

Silicon is which type of solid?

Which statement about surface tension is FALSE?

When sufficient quantity of heat has been added to reach the boiling point of a solution,what happens to any additional heat added?

Atomic solids,such as graphite,have a weak dispersion force holding them together.

The melting point is reached when sufficient energy has been added to the molecules in a substance to overcome the intermolecular forces holding them stationary.

Increasing the intermolecular forces of a liquid will do which of the following?

Compounds that are similar to water in molecular mass all exist as solids.

Gases typically have high densities in comparison to solids.

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

How many kJ of heat are needed to completely melt 95.3 g of copper metal,given that the metal is at its melting point? The heat of fusion for this metal is 13.1

Which molecule below has hydrogen bonding?

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

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