Question 1

The surface tension of water is lowered when a detergent is present in solution.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following pairs of substances is arranged so that the one with higher viscosity is listed first?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  EF) A) and C)
G) A) and B)

Question 3

Which of the following has a boiling point that does not fit the general trend?

Accepted Answer

A)  NH 3
B)  PH 3
C)  AsH 3
D)  SbH 3
E)  BiH 3F) None of the above
G) B) and E)

Question 4

Which one of the following substances will have hydrogen bonds between molecules?

Accepted Answer

A)  (CH 3) 3N
B)  CH 3-O-CH 3
C)  CH 3CH 2-OH
D)  CH 3CH 2-F
E)  HIF) B) and D)
G) All of the above

Question 5

A metal such with a face-centered cubic lattice will have __________ atom(s)  per unit cell.

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  10F) A) and B)
G) A) and E)

Question 6

Which of the following terms refers to the resistance of a liquid to flow?

Accepted Answer

A)  Surface tension
B)  Capillary action
C)  Viscosity
D)  Adhesion
E)  CohesionF) D) and E)
G) None of the above

Question 7

A sample of octane in equilibrium with its vapor in a closed 1.0-L container has a vapor pressure of 50.0 torr at 45°C. The container's volume is increased to 2.0 L at constant temperature and the liquid/vapor equilibrium is reestablished. What is the vapor pressure?

Accepted Answer

A)  > 50.0 torr
B)  50.0 torr
C)  25.0 torr
D)  The mass of the octane vapor is needed to calculate the vapor pressure.
E)  The external pressure is needed to calculate the vapor pressure.F) A) and C)
G) B) and E)

Question 8

Neon atoms are attracted to each other by

Accepted Answer

A)  dipole-dipole forces.
B)  London dispersion forces.
C)  hydrogen bonding.
D)  covalent bonding.
E)  intramolecular forces.F) C) and E)
G) B) and C)

Question 9

Comparing the energies of the following intermolecular forces on a kJ/mol basis, which would normally have the highest energy (i.e., be the strongest force) ?

Accepted Answer

A)  Ion-induced dipole
B)  Dipole-induced dipole
C)  Ion-dipole
D)  Dipole-dipole
E)  DispersionF) C) and E)
G) A) and C)

Question 10

Iron crystallizes in the body-centered cubic lattice. What is the coordination number for Fe?

Accepted Answer

A)  4
B)  6
C)  8
D)  10
E)  12F) B) and D)
G) C) and D)

Question 11

A temperature increase causes __________ in the conductivity of a conductor.

Accepted Answer

A)  a decrease
B)  an increase
C)  an increase or decrease (depending on the conductor) 
D)  a modulation
E)  no changeF) B) and C)
G) C) and D)

Question 12

Which of the following is true about kinetic energy, Ek, and potential energy, Ep, when ethyl alcohol at 40°C is compared with ethyl alcohol at 20°C?

Accepted Answer

A)  E k(40°
C)  k(20°
C)  ; E p(40°
C)  ≈ E p(20°
C)  
B)  E k(40°
C)  > E k(20°
C)  ; E p(40°
C)  ≈ E p(20°
C)  
C)  E p(40°
C)  p(20°
C)  ; E k(40°
C)  ≈ E k(20°
C)  
D)  E p(40°
C)  > E p(20°
C)  ; E k(40°
C)  ≈ E k(20°
C)  
E)  E p(40°
C)  > E p(20°
C)  ; E k(40°
C)  > E k(20°
C)  F) B) and D)
G) A) and B)

Question 13

Which of the following should have the highest surface tension at a given temperature?

Accepted Answer

A)  CH 4
B)  CF 4
C)  CCl 4
D)  CBr 4
E)  CI 4F) A) and E)
G) A) and B)

Question 14

The maximum number of phases of a single substance which can coexist in equilibrium is two.

Accepted Answer

A) True 
 B)False

Question 15

Octane is a component of fuel used in internal combustion engines. The dominant intermolecular forces in octane are

Accepted Answer

A)  dipole-dipole forces.
B)  London dispersion forces.
C)  hydrogen bonding.
D)  covalent bonds.
E)  carbon-hydrogen bonds.F) B) and E)
G) A) and B)

Exam 12: Intermolecular Forces: Liquids, Solids, and Phase Changes

The surface tension of water is lowered when a detergent is present in solution.

Correct Answer
verified

Iron crystallizes in the body-centered cubic lattice. What is the coordination number for Fe?

Correct Answer
verified

Which of the following pairs of substances is arranged so that the one with higher viscosity is listed first?

Correct Answer
verified

Which of the following terms refers to the resistance of a liquid to flow?

Correct Answer
verified

Comparing the energies of the following intermolecular forces on a kJ/mol basis, which would normally have the highest energy (i.e., be the strongest force) ?

Correct Answer
verified

Neon atoms are attracted to each other by

Correct Answer
verified

A metal such with a face-centered cubic lattice will have __________ atom(s) per unit cell.

Correct Answer
verified

Which one of the following substances will have hydrogen bonds between molecules?

Correct Answer
verified

Which of the following is true about kinetic energy, E_k, and potential energy, E_p, when ethyl alcohol at 40°C is compared with ethyl alcohol at 20°C?

Correct Answer
verified

Which of the following should have the highest surface tension at a given temperature?

Correct Answer
verified

The maximum number of phases of a single substance which can coexist in equilibrium is two.

Correct Answer
verified

Octane is a component of fuel used in internal combustion engines. The dominant intermolecular forces in octane are

Correct Answer
verified

A sample of octane in equilibrium with its vapor in a closed 1.0-L container has a vapor pressure of 50.0 torr at 45°C. The container's volume is increased to 2.0 L at constant temperature and the liquid/vapor equilibrium is reestablished. What is the vapor pressure?

Correct Answer
verified

A temperature increase causes __________ in the conductivity of a conductor.

Correct Answer
verified

Which of the following has a boiling point that does not fit the general trend?

Correct Answer
verified

Exam 12: Intermolecular Forces: Liquids, Solids, and Phase Changes

The surface tension of water is lowered when a detergent is present in solution.

Correct AnswerverifiedShow Answer

Iron crystallizes in the body-centered cubic lattice. What is the coordination number for Fe?

Correct AnswerverifiedShow Answer

Which of the following pairs of substances is arranged so that the one with higher viscosity is listed first?

Correct AnswerverifiedShow Answer

Which of the following terms refers to the resistance of a liquid to flow?

Correct AnswerverifiedShow Answer

Comparing the energies of the following intermolecular forces on a kJ/mol basis, which would normally have the highest energy (i.e., be the strongest force) ?

Correct AnswerverifiedShow Answer

Neon atoms are attracted to each other by

Correct AnswerverifiedShow Answer

A metal such with a face-centered cubic lattice will have __________ atom(s) per unit cell.

Correct AnswerverifiedShow Answer

Which one of the following substances will have hydrogen bonds between molecules?

Correct AnswerverifiedShow Answer

Which of the following is true about kinetic energy, Ek, and potential energy, Ep, when ethyl alcohol at 40°C is compared with ethyl alcohol at 20°C?

Correct AnswerverifiedShow Answer

Which of the following should have the highest surface tension at a given temperature?

Correct AnswerverifiedShow Answer

The maximum number of phases of a single substance which can coexist in equilibrium is two.

Correct AnswerverifiedShow Answer

Octane is a component of fuel used in internal combustion engines. The dominant intermolecular forces in octane are

Correct AnswerverifiedShow Answer

A sample of octane in equilibrium with its vapor in a closed 1.0-L container has a vapor pressure of 50.0 torr at 45°C. The container's volume is increased to 2.0 L at constant temperature and the liquid/vapor equilibrium is reestablished. What is the vapor pressure?

Correct AnswerverifiedShow Answer

A temperature increase causes __________ in the conductivity of a conductor.

Correct AnswerverifiedShow Answer

Which of the following has a boiling point that does not fit the general trend?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Which of the following is true about kinetic energy, E_k, and potential energy, E_p, when ethyl alcohol at 40°C is compared with ethyl alcohol at 20°C?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified