Filters
Question type
Study Flashcards

One significant difference between gases and liquids is that __________.


A) a gas is made up of molecules
B) a gas assumes the volume of its container
C) a gas may consist of both elements and compounds
D) gases are always mixtures
E) All of the above answers are correct.

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

Correct Answer

verifed

verified

The average kinetic energy of the particles of a gas is directly proportional to __________.


A) the rms speed
B) the square of the rms speed
C) the square root of the rms speed
D) the square of the particle mass
E) the particle mass

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

Correct Answer

verifed

verified

The temperature of a sample of CH4 gas (10.34 g) in a 50.0 L vessel at 1.33 atm is __________ °C.


A) 984
B) -195
C) 195
D) 1260
E) -1260

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

Correct Answer

verifed

verified

The effusion rate of a gas is proportional to the square root of its molar mass.

A) True
B) False

Correct Answer

verifed

verified

Of the following, __________ is a correct statement of Boyle's law.


A) PV = constant
B) Of the following, __________ is a correct statement of Boyle's law. A) PV = constant B) = constant C) = constant D) = constant E) = constant = constant
C) Of the following, __________ is a correct statement of Boyle's law. A) PV = constant B) = constant C) = constant D) = constant E) = constant = constant
D) Of the following, __________ is a correct statement of Boyle's law. A) PV = constant B) = constant C) = constant D) = constant E) = constant = constant
E) Of the following, __________ is a correct statement of Boyle's law. A) PV = constant B) = constant C) = constant D) = constant E) = constant = constant

F) C) and D)
G) B) and C)

Correct Answer

verifed

verified

Which one of the following is a valid statement of Avogadro's law?


A) Which one of the following is a valid statement of Avogadro's law? A) = constant B) = constant C) PV = constant D) V = constant × n E) V = constant × P = constant
B) Which one of the following is a valid statement of Avogadro's law? A) = constant B) = constant C) PV = constant D) V = constant × n E) V = constant × P = constant
C) PV = constant
D) V = constant × n
E) V = constant × P

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

Correct Answer

verifed

verified

Given the equation: C2H6 (g)+ O2 (g)→ CO2 (g)+ H2O (g)(not balanced) Determine the number of liters of O2 consumed at STP when 270.0 grams of C2H6 is burned.

Correct Answer

verifed

verified

Which one of the following gases would have the highest average molecular speed at 25°C?


A) O2
B) N2
C) CO2
D) CH4
E) SF6

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

Correct Answer

verifed

verified

Gaseous mixtures __________.


A) can only contain molecules
B) are all heterogeneous
C) can only contain isolated atoms
D) are all homogeneous
E) must contain both isolated atoms and molecules

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

Correct Answer

verifed

verified

Which one of the following gases would deviate the least from ideal gas behavior?


A) Ne
B) CH3Cl
C) Kr
D) CO2
E) F2

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

Correct Answer

verifed

verified

A gas vessel is attached to an open-end manometer filled with a nonvolatile liquid of density 0.993 g/mL as shown below. A gas vessel is attached to an open-end manometer filled with a nonvolatile liquid of density 0.993 g/mL as shown below. The difference in heights of the liquid in the two sides of the manometer is 32.3 mm when the atmospheric pressure is 765 mm Hg. Given that the density of mercury is 13.6 g/mL, the pressure of the enclosed gas is __________ atm. A) 1.05 B) 1.01 C) 0.976 D) 0.993 E) 1.08 The difference in heights of the liquid in the two sides of the manometer is 32.3 mm when the atmospheric pressure is 765 mm Hg. Given that the density of mercury is 13.6 g/mL, the pressure of the enclosed gas is __________ atm.


A) 1.05
B) 1.01
C) 0.976
D) 0.993
E) 1.08

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

Correct Answer

verifed

verified

If the temperature is lowered from 60°C to 30°C, the volume of a fixed amount of gas will be one half the original volume.

A) True
B) False

Correct Answer

verifed

verified

A gas originally at 27°C and 1.00 atm pressure in a 3.9 L flask is cooled at constant pressure until the temperature is 11°C. The new volume of the gas is __________ L.


A) 0.27
B) 3.7
C) 3.9
D) 4.1
E) 0.24

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

Correct Answer

verifed

verified

A gas mixture of Ne and Ar has a total pressure of 4.00 atm and contains 16.0 mol of gas. If the partial pressure of Ne is 2.75 atm, how many moles of Ar are in the mixture?


A) 11.0
B) 5.00
C) 6.75
D) 9.25
E) 12.0

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

Correct Answer

verifed

verified

The pressure of a sample of CH4 gas (6.022 g) in a 30.0 L vessel at 402 K is __________ atm.


A) 2.42
B) 6.62
C) 0.413
D) 12.4
E) 22.4

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

Correct Answer

verifed

verified

Which of the following equations shows an incorrect relationship between pressures given in terms of different units?


A) 1.20 atm = 122 kPa
B) 152 mm Hg = 2.03 × 104Pa
C) 0.760 atm = 578 mm Hg
D) 1.0 torr = 2.00 mm Hg
E) 1.00 atm = 760 torr

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

Correct Answer

verifed

verified

The density of NO2 in a 4.50 L tank at 760.0 torr and 25.0°C is __________ g/L.


A) 1.64
B) 9.30
C) 1.68
D) 1.88
E) 3.27

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

Correct Answer

verifed

verified

A gas at a pressure of 10.0 Pa exerts a force of __________ N on an area of 5.5 m2.


A) 55
B) 0.55
C) 5.5
D) 1.8
E) 18

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

Correct Answer

verifed

verified

The volume of a sample of gas (2.49 g) was 752 mL at 1.98 atm and 62°C. The gas is __________.


A) SO2
B) SO3
C) NH3
D) NO2
E) Ne

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

Correct Answer

verifed

verified

The deviation from ideal behavior of a gas is most evident at __________ and/or low temperature.

Correct Answer

verifed

verified

Showing 41 - 60 of 172

Related Exams

Exam 1

Introduction: Matter and Measurement

151 Questions

Exam 2

Atoms, Molecules, and Ions

230 Questions

Exam 3

Stoichiometry: Calculations With Chemical Formulas and Equations

170 Questions

Exam 4

Aqueous Reactions and Solution Stoichiometry

177 Questions

Exam 5

Thermochemistry

148 Questions

Exam 6

Electronic Structure of Atoms

180 Questions

Exam 7

Periodic Properties of the Elements

171 Questions

Exam 8

Basic Concepts of Chemical Bonding

141 Questions

Exam 9

Molecular Geometry and Bonding Theories

177 Questions

Exam 11

Liquids and Intermolecular Forces

119 Questions

Exam 12

Solids and Modern Materials

78 Questions

Exam 13

Properties of Solutions

151 Questions

Exam 14

Chemical Kinetics

130 Questions

Exam 15

Chemical Equilibrium

92 Questions

Exam 16

Acid-Base Equilibria

134 Questions

Exam 17

Additional Aspects of Aqueous Equilibria

111 Questions

Exam 18

Chemistry of the Environment

121 Questions

Exam 19

Chemical Thermodynamics

120 Questions

Exam 20

Electrochemistry

110 Questions

Exam 21

Nuclear Chemistry

158 Questions

Exam 22

Chemistry of the Nonmetals

192 Questions

Exam 23

Transition Metals and Coordination Chemistry

147 Questions

Exam 24

The Chemistry of Life: Organic and Biological Chemistry

124 Questions

Show Answer