Filters
Question type
Study Flashcards

Which of the following pure substances has the strongest dispersion forces?


A) C4H10
B) C5H12
C) C6H14
D) C7H16
E) C8H18

F) All of the above
G) A) and C)

Correct Answer

verifed

verified

Select the pair of substances in which the one with the lower vapor pressure at a given temperature is listed first.


A) Select the pair of substances in which the one with the lower vapor pressure at a given temperature is listed first. A) B) PH<sub>3</sub>, NH<sub>3</sub> C) CF<sub>4</sub>, CBr<sub>4</sub> D) C<sub>3</sub>H<sub>8</sub>, C<sub>4</sub>H<sub>10</sub> E) F<sub>2</sub>, Cl<sub>2</sub>
B) PH3, NH3
C) CF4, CBr4
D) C3H8, C4H10
E) F2, Cl2

F) A) and D)
G) C) and D)

Correct Answer

verifed

verified

Octane, C8H18, boils at 125°C, whereas water boils at 100°C. This information suggests that the dispersion forces in nonpolar octane molecules are stronger than the dispersion forces and hydrogen bonding in water.

A) True
B) False

Correct Answer

verifed

verified

Which would be expected to have the highest surface tension at room temperature?


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

F) D) and E)
G) B) and D)

Correct Answer

verifed

verified

If liquid bromine is cooled to form a solid, which type of solid does it form?


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

F) C) and E)
G) All of the above

Correct Answer

verifed

verified

What name is given to a quantitative measure of the elastic force in the surface of a liquid?


A) Surface tension
B) Adhesion
C) Polarity
D) Capillary action
E) Cohesion

F) None of the above
G) A) and B)

Correct Answer

verifed

verified

If a molecule at the surface of a liquid has enough kinetic energy to escape the liquid phase and enter the gas phase, then which of the following terms is used to describe this phenomenon?


A) Boiling point
B) Condensation
C) Vaporization
D) Sublimation
E) Gasification

F) A) and B)
G) None of the above

Correct Answer

verifed

verified

Below is a representation of liquid water in equilibrium with its water vapor in a rigid container at 35ºC. The circles represent water vapor. Below is a representation of liquid water in equilibrium with its water vapor in a rigid container at 35ºC. The circles represent water vapor. Which diagram below best represents liquid water in equilibrium with its water vapor at 70ºC? The heat of vaporization of water is 40.7 kJ/mol. (R = 8.314 J/K • mol) A) B) C) D) E) Which diagram below best represents liquid water in equilibrium with its water vapor at 70ºC? The heat of vaporization of water is 40.7 kJ/mol. (R = 8.314 J/K • mol)


A) Below is a representation of liquid water in equilibrium with its water vapor in a rigid container at 35ºC. The circles represent water vapor. Which diagram below best represents liquid water in equilibrium with its water vapor at 70ºC? The heat of vaporization of water is 40.7 kJ/mol. (R = 8.314 J/K • mol) A) B) C) D) E)
B) Below is a representation of liquid water in equilibrium with its water vapor in a rigid container at 35ºC. The circles represent water vapor. Which diagram below best represents liquid water in equilibrium with its water vapor at 70ºC? The heat of vaporization of water is 40.7 kJ/mol. (R = 8.314 J/K • mol) A) B) C) D) E)
C) Below is a representation of liquid water in equilibrium with its water vapor in a rigid container at 35ºC. The circles represent water vapor. Which diagram below best represents liquid water in equilibrium with its water vapor at 70ºC? The heat of vaporization of water is 40.7 kJ/mol. (R = 8.314 J/K • mol) A) B) C) D) E)
D) Below is a representation of liquid water in equilibrium with its water vapor in a rigid container at 35ºC. The circles represent water vapor. Which diagram below best represents liquid water in equilibrium with its water vapor at 70ºC? The heat of vaporization of water is 40.7 kJ/mol. (R = 8.314 J/K • mol) A) B) C) D) E)
E) Below is a representation of liquid water in equilibrium with its water vapor in a rigid container at 35ºC. The circles represent water vapor. Which diagram below best represents liquid water in equilibrium with its water vapor at 70ºC? The heat of vaporization of water is 40.7 kJ/mol. (R = 8.314 J/K • mol) A) B) C) D) E)

F) A) and E)
G) A) and D)

Correct Answer

verifed

verified

A) 34.7 kJ/mol B) 21.9 kJ/mol C) 3.45 kJ/mol D) 712 J/mol E) 9.99 kJ/mol A) 34.7 kJ/mol B) 21.9 kJ/mol C) 3.45 kJ/mol D) 712 J/mol E) 9.99 kJ/mol


A) 34.7 kJ/mol
B) 21.9 kJ/mol
C) 3.45 kJ/mol
D) 712 J/mol
E) 9.99 kJ/mol

F) A) and D)
G) D) and E)

Correct Answer

verifed

verified

What is the attractive force between like molecules involved in capillary action?


A) Surface tension
B) Adhesion
C) Polarity
D) Viscosity
E) Cohesion

F) A) and D)
G) A) and C)

Correct Answer

verifed

verified

The triple point of iodine is at 0.12 atm and 115°C. Thus, liquid I2


A) is more dense than I2(s) .
B) cannot exist above 115°C.
C) is liquid at room temperature.
D) cannot have a vapor pressure less than 91 torr.
E) sublimes at high pressure.

F) B) and D)
G) A) and D)

Correct Answer

verifed

verified

________ ________ are the attractions that hold particles together in condensed phases.

Correct Answer

verifed

verified

Intermolec...

View Answer

Which of the following is defined as the attractive forces between polar molecules? Which of the following is defined as the attractive forces between polar molecules? A) I and III B) II only C) III only D) I, II, and III E) I only


A) I and III
B) II only
C) III only
D) I, II, and III
E) I only

F) C) and E)
G) All of the above

Correct Answer

verifed

verified

What is the name given for the attraction between unlike molecules involved in capillary action?


A) Adhesion
B) Ionization
C) Cohesion
D) Surface tension
E) Viscosity

F) A) and C)
G) A) and E)

Correct Answer

verifed

verified

What is the intermolecular force that exists between a magnesium ion and hydrogen sulfide?


A) dipole-dipole forces
B) London dispersion forces
C) ionic bonding
D) ion-dipole forces
E) ion-ion forces

F) B) and C)
G) A) and E)

Correct Answer

verifed

verified

Octane is a liquid component of gasoline. Given the following vapor pressures of octane at various temperatures, estimate the boiling point of octane in Leadville, Colorado, where the atmospheric pressure is 496 mmHg. (R = 8.314 J/K • mol) Octane is a liquid component of gasoline. Given the following vapor pressures of octane at various temperatures, estimate the boiling point of octane in Leadville, Colorado, where the atmospheric pressure is 496 mmHg. (R = 8.314 J/K • mol) A) 125°C B) 120°C C) 115°C D) 110°C E) 105°C


A) 125°C
B) 120°C
C) 115°C
D) 110°C
E) 105°C

F) A) and D)
G) C) and E)

Correct Answer

verifed

verified

One of the crystalline forms of zinc oxide is a structure where the oxygen atoms are at the lattice points in a face-centered cubic lattice. How many atoms are in each unit cell?


A) 2
B) 4
C) 6
D) 8
E) 10

F) A) and E)
G) A) and B)

Correct Answer

verifed

verified

How much energy (heat) is required to convert 52.0 g of ice at -10.0°C to steam at 100°C? How much energy (heat) is required to convert 52.0 g of ice at -10.0°C to steam at 100°C? A) 12.0 kJ B) 23.0 kJ C) 46.4 kJ D) 158 kJ E) 2.30 × 10<sup>4</sup> kJ


A) 12.0 kJ
B) 23.0 kJ
C) 46.4 kJ
D) 158 kJ
E) 2.30 × 104 kJ

F) B) and E)
G) None of the above

Correct Answer

verifed

verified

Polyethylene plastic consists of long chains of carbon atoms, each of which is also bonded to hydrogens as shown below: Polyethylene plastic consists of long chains of carbon atoms, each of which is also bonded to hydrogens as shown below: Water forms beads when placed on a polyethylene surface. Why? Water forms beads when placed on a polyethylene surface. Why?

Correct Answer

verifed

verified

Water is highly polar and poly...

View Answer

Vanadium crystallizes in a body-centered cubic lattice, and the length of the edge of a unit cell is 305 pm. What is the density of V?


A) 0.712 g/cm3
B) 2.98 g/cm3
C) 5.96 g/cm3
D) 8.77 g/cm3
E) 11.9 g/cm3

F) A) and E)
G) A) and D)

Correct Answer

verifed

verified

Showing 81 - 100 of 137

Related Exams

Exam 1

Chemistry: the Central Science

133 Questions

Exam 2

Atoms, Molecules, and Ions

124 Questions

Exam 3

Stoichiometry: Ratios of Combination

137 Questions

Exam 4

Reactions in Aqueous Solutions

146 Questions

Exam 5

Thermochemistry

141 Questions

Exam 6

Quantum Theory and the Electronic Structure of Atoms

135 Questions

Exam 7

Electron Configuration and the Periodic Table

120 Questions

Exam 8

Chemical Bonding I: Basic Concepts

102 Questions

Exam 9

Chemical Bonding II: Molecular Geometry and Bonding Theories

139 Questions

Exam 10

Gases

137 Questions

Exam 12

Modern Materials

108 Questions

Exam 13

Physical Properties of Solutions

151 Questions

Exam 14

Chemical Kinetics

132 Questions

Exam 15

Chemical Equilibrium

146 Questions

Exam 16

Acids and Bases

137 Questions

Exam 17

Acid-Base Equilibria and Solubility Equilibria

133 Questions

Exam 18

Entropy, Free Energy, and Equilibrium

107 Questions

Exam 19

Electrochemistry

122 Questions

Exam 20

Nuclear Chemistry

127 Questions

Exam 21

Environmental Chemistry

135 Questions

Exam 22

Coordination Chemistry

132 Questions

Exam 23

Metallurgy and the Chemistry of Metals

152 Questions

Exam 24

Nonmetallic Elements and Their Compounds

117 Questions

Exam 25

Organic Chemistry

121 Questions

Show Answer