Question 1

Gas law calculations normally require the use of the Kelvin temperature scale.

Accepted Answer

A) True 
 B)False

Question 2

The relationship P1/T1 = P2/T2 is called ________.

Accepted Answer

A) Boyle's Law 
B) Charles's Law 
C) Gay-Lussac's Law 
D) The Combined Gas Law 
E) Avogadro's Law 
A) Boyle's Law 
B) Charles's Law 
C) Gay-Lussac's Law 
D) The Combined Gas Law 
E) Avogadro's Law

Question 3

What unit of temperature is used in gas law calculations?

Accepted Answer

A) degrees Fahrenheit 
B) degrees Celsius 
C) Kelvin 
D) either degrees Celsius or degrees Fahrenheit 
E) either degrees Celsius or Kelvin 
A) degrees Fahrenheit 
B) degrees Celsius 
C) Kelvin 
D) either degrees Celsius or degrees Fahrenheit 
E) either degrees Celsius or Kelvin

Question 4

A barometer is a device for measuring ________.

Accepted Answer

A) atmospheric pressure 
B) blood pressure 
C) gas pressure in a container 
D) gas pressure in the lung 
E) vapor pressure 
A) atmospheric pressure 
B) blood pressure 
C) gas pressure in a container 
D) gas pressure in the lung 
E) vapor pressure

Question 5

Which of the following correctly describes the process of inspiration (air entering the lungs)?

Accepted Answer

A) The lungs expand, causing their internal pressure to decrease. 
B) The lungs expand, causing their internal pressure to increase. 
C) The lungs contract, causing their internal pressure to decrease. 
D) The lungs contract, causing their internal pressure to increase. 
E) There is no change in the internal pressure in the lungs. 
A) The lungs expand, causing their internal pressure to decrease. 
B) The lungs expand, causing their internal pressure to increase. 
C) The lungs contract, causing their internal pressure to decrease. 
D) The lungs contract, causing their internal pressure to increase. 
E) There is no change in the internal pressure in the lungs.

Question 6

A sample of helium gas at 27.0 °C and 3.60 atm pressure is cooled in the same container to a temperature of -73.0 °C. What is the new pressure?

Accepted Answer

A) 3.12 atm 
B) 2.40 atm 
C) 5.40 atm 
D) 2.38 atm 
E) 4.15 atm 
A) 3.12 atm 
B) 2.40 atm 
C) 5.40 atm 
D) 2.38 atm 
E) 4.15 atm

Question 7

The unit of 1 atmosphere used to describe the pressure of a gas is equal to

Accepted Answer

A) 1 mmHg . 
B) 100 mmHg. 
C) 200 mmHg. 
D) 600 mmHg. 
E) 760 mmHg. 
A) 1 mmHg . 
B) 100 mmHg. 
C) 200 mmHg. 
D) 600 mmHg. 
E) 760 mmHg.

Question 8

A 5.00-L tank contains helium gas at 1.50 atm. What is the pressure of the gas in torr?

Accepted Answer

A) 1.50 torr 
B) 507 torr 
C) 760 torr 
D) 1140 torr 
E) 7.5 torr 
A) 1.50 torr 
B) 507 torr 
C) 760 torr 
D) 1140 torr 
E) 7.5 torr

Question 9

A cyclopropane-oxygen mixture is used as an anesthetic. If the partial pressure of cyclopropane in the mixture is 330 mmHg and the partial pressure of the oxygen is 1.0 atm, what is the total pressure of the mixture in torr?

Accepted Answer

A) 330 torr 
B) 430 torr 
C) 760 torr 
D) 1.4 torr 
E) 1100 torr 
A) 330 torr 
B) 430 torr 
C) 760 torr 
D) 1.4 torr 
E) 1100 torr

Question 10

What volume would a 0.250 mole sample of H2 gas occupy, if it had a which has a pressure of 1.70 atm, and a temperature of 35 °C?

Accepted Answer

A) 0.269 L 
B) 0.423 L 
C) 1.25 L 
D) 3.72 L 
E) 283 L 
A) 0.269 L 
B) 0.423 L 
C) 1.25 L 
D) 3.72 L 
E) 283 L

Question 11

One atmosphere is the same as ________ mmHg.

Accepted Answer

The answer of One atmosphere is the same as ________...

Question 12

At STP, what is the volume of 4.50 moles of nitrogen gas?

Accepted Answer

A) 167 L 
B) 3420 L 
C) 101 L 
D) 60.7 L 
E) 1230 L 
A) 167 L 
B) 3420 L 
C) 101 L 
D) 60.7 L 
E) 1230 L

Question 13

According to Boyle's Law, the pressure of a gas increases as the volume decreases because

Accepted Answer

A) the gas particles get bigger. 
B) the kinetic energy of the gas particles increases. 
C) the temperature of the gas increases. 
D) the gas particles strike the walls of the container with more force. 
E) the gas particles strike the walls of the container more often. 
A) the gas particles get bigger. 
B) the kinetic energy of the gas particles increases. 
C) the temperature of the gas increases. 
D) the gas particles strike the walls of the container with more force. 
E) the gas particles strike the walls of the container more often.

Question 14

Which of the following is NOT part of the kinetic theory of gases?

Accepted Answer

A) A gas is composed of very small particles. 
B) There is very little empty space in a gas. 
C) Gas particles move rapidly. 
D) Gas particles do not attract or repel one another. 
E) Gas particles move faster when the temperature increases. 
A) A gas is composed of very small particles. 
B) There is very little empty space in a gas. 
C) Gas particles move rapidly. 
D) Gas particles do not attract or repel one another. 
E) Gas particles move faster when the temperature increases.

Question 15

A diver exhales a bubble with a volume of 250 mL at a pressure of 2.4 atm and a temperature of 15 °C. What is the volume of the bubble when it reaches the surface where the pressure is 1.0 atm and the temperature is 27 °C, if the moles are constant?

Accepted Answer

A) 580 mL 
B) 630 mL 
C) 100 mL 
D) 110 mL 
E) 1100 mL 
A) 580 mL 
B) 630 mL 
C) 100 mL 
D) 110 mL 
E) 1100 mL

Question 16

STP stands for 0 °C and 760 mmHg.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following correctly describes the partial pressures of gases in the body?

Accepted Answer

A) high O2, low CO2, oxygenated blood 
B) high O2, low CO2, deoxygenated blood 
C) high O2, high CO2, oxygenated blood 
D) high O2, high CO2, tissue 
E) low O2, low CO2, deoxygenated blood 
A) high O2, low CO2, oxygenated blood 
B) high O2, low CO2, deoxygenated blood 
C) high O2, high CO2, oxygenated blood 
D) high O2, high CO2, tissue 
E) low O2, low CO2, deoxygenated blood

Question 18

A 5.00-L tank contains helium gas at 1.50 atm. What is the pressure of the gas in mmHg?

Accepted Answer

A) 1.50 mmHg 
B) 507 mmHg 
C) 760 mmHg 
D) 1140 mmHg 
E) 7.5 mmHg 
A) 1.50 mmHg 
B) 507 mmHg 
C) 760 mmHg 
D) 1140 mmHg 
E) 7.5 mmHg

Question 19

The pressure unit 1 mmHg is the same pressure unit as the pressure unit ________.

Accepted Answer

The answer of The pressure unit 1 mmHg is the...

Question 20

When the combined gas law is rearranged to solve for V2, the following is the correct expression: V2 =

Accepted Answer

A) T2T1V1/P2P1. 
B) P1V1T2/P2T1. 
C) P1V1T1/P2T2. 
D) P2T2/P1V1T1. 
E) P1V1/T1 - P2/T2. 
A) T2T1V1/P2P1. 
B) P1V1T2/P2T1. 
C) P1V1T1/P2T2. 
D) P2T2/P1V1T1. 
E) P1V1/T1 - P2/T2.

Exam 8: Gases

Gas law calculations normally require the use of the Kelvin temperature scale.

The relationship P1/T1 = P2/T2 is called ________.

What unit of temperature is used in gas law calculations?

A barometer is a device for measuring ________.

Which of the following correctly describes the process of inspiration (air entering the lungs)?

A sample of helium gas at 27.0 °C and 3.60 atm pressure is cooled in the same container to a temperature of -73.0 °C. What is the new pressure?

The unit of 1 atmosphere used to describe the pressure of a gas is equal to

A 5.00-L tank contains helium gas at 1.50 atm. What is the pressure of the gas in torr?

A cyclopropane-oxygen mixture is used as an anesthetic. If the partial pressure of cyclopropane in the mixture is 330 mmHg and the partial pressure of the oxygen is 1.0 atm, what is the total pressure of the mixture in torr?

What volume would a 0.250 mole sample of H2 gas occupy, if it had a which has a pressure of 1.70 atm, and a temperature of 35 °C?

One atmosphere is the same as ________ mmHg.

At STP, what is the volume of 4.50 moles of nitrogen gas?

According to Boyle's Law, the pressure of a gas increases as the volume decreases because

Which of the following is NOT part of the kinetic theory of gases?

A diver exhales a bubble with a volume of 250 mL at a pressure of 2.4 atm and a temperature of 15 °C. What is the volume of the bubble when it reaches the surface where the pressure is 1.0 atm and the temperature is 27 °C, if the moles are constant?

STP stands for 0 °C and 760 mmHg.

Which of the following correctly describes the partial pressures of gases in the body?

A 5.00-L tank contains helium gas at 1.50 atm. What is the pressure of the gas in mmHg?

The pressure unit 1 mmHg is the same pressure unit as the pressure unit ________.

When the combined gas law is rearranged to solve for V2, the following is the correct expression: V2 =

Chemistry in Our Lives

Chemistry and Measurements

Energy and Matter

Atoms

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Reactions and Quantities

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, Phenols, Thiols, and Ethers

Aldehydes, Ketones, and Chiral Molecules

Carbohydrates

Carboxylic Acids and Esters

Lipids

Amines and Amides

Amino Acids and Proteins

Enzymes and Vitamins

Nucleic Acids and Protein Synthesis

Metabolic Pathways for Carbohydrates

Metabolism and Energy Production

Metabolic Pathways for Lipids and Amino Acids

Filters

The relationship P₁/T₁ = P₂/T₂ is called ________.

What volume would a 0.250 mole sample of H₂gas occupy, if it had a which has a pressure of 1.70 atm, and a temperature of 35 °C?

When the combined gas law is rearranged to solve for V₂, the following is the correct expression: V₂ =