Question 1

As you rise higher in Earth's atmosphere, the atmospheric pressure

Accepted Answer

A) increases. 
B) decreases. 
C) remains the same. 
A) increases. 
B) decreases. 
C) remains the same.

Question 2

At STP, what is the volume of 1.00 mole of carbon dioxide?

Accepted Answer

A) 1.00 L 
B) 44.0 L 
C) 273 L 
D) 22.4 L 
E) 12.2 L 
A) 1.00 L 
B) 44.0 L 
C) 273 L 
D) 22.4 L 
E) 12.2 L

Question 3

The kinetic energy of a gas sample is directly proportional to the Kelvin temperature of the gas.

Accepted Answer

A) True 
 B)False

Question 4

The pressure of 5.0 L of gas increases from 1.50 atm to 1240 mmHg. What is the final volume of the gas, assuming no change in moles or temperature?

Accepted Answer

A) 4100 L 
B) 5.0 L 
C) 0.0060 L 
D) 5.4 L 
E) 4.6 L 
A) 4100 L 
B) 5.0 L 
C) 0.0060 L 
D) 5.4 L 
E) 4.6 L

Question 5

Which of the following is NOT a potential use for a hyperbaric chamber?

Accepted Answer

A) treatment for burns and infections 
B) counteracting carbon monoxide poisoning 
C) increasing the rate at which a broken bone heals 
D) treating a diver with the bends 
E) treating some cancers 
A) treatment for burns and infections 
B) counteracting carbon monoxide poisoning 
C) increasing the rate at which a broken bone heals 
D) treating a diver with the bends 
E) treating some cancers

Question 6

What is the mass of a sample of O2 gas, which has a pressure of 740.mmHg, at a temperature of 25 °C, in a volume of 250. mL?

Accepted Answer

A) 0.318 g 
B) 3.82 g 
C) 201 g 
D) 292 g 
E) 320. g 
A) 0.318 g 
B) 3.82 g 
C) 201 g 
D) 292 g 
E) 320. g

Question 7

Avogadro's Law is usually written as ________.

Accepted Answer

The answer of Avogadro's Law is usually written as ________....

Question 8

A gas sample in a closed, expandable container of initial volume 5.00 L was allowed to warm from 25 °C to 35 °C, at constant moles and pressure. What was its new volume?

Accepted Answer

A) 4.84 L 
B) 5.17 L 
C) 7.00 L 
D) 3.57 L 
E) 4380 L 
A) 4.84 L 
B) 5.17 L 
C) 7.00 L 
D) 3.57 L 
E) 4380 L

Question 9

At STP, what is the mass of 11.2 liters of O2 gas?

Accepted Answer

A) 16.0 g 
B) 32.0 g 
C) 64.0 g 
D) 128 g 
E) 8.00 g 
A) 16.0 g 
B) 32.0 g 
C) 64.0 g 
D) 128 g 
E) 8.00 g

Question 10

During inspiration, we actually make use of 100% of the oxygen in the air we breathe.

Accepted Answer

A) True 
 B)False

Question 11

The relationship V1/n1 = V2/n2 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 12

Nitrogen makes up about ________ percent of the atmosphere.

Accepted Answer

The answer of Nitrogen makes up about ________ percent of...

Question 13

In the kinetic molecular theory of gas behavior, particles of a gas tend to move ________ and collisions between them are ________.

Accepted Answer

A) rapidly; rare 
B) slowly; rare 
C) rapidly; elastic 
D) slowly; elastic 
E) slowly; unusual 
A) rapidly; rare 
B) slowly; rare 
C) rapidly; elastic 
D) slowly; elastic 
E) slowly; unusual

Question 14

A gas sample contains 4.0 g of CH₄ and 2.0 g of He. What is the volume of the sample at STP?

Accepted Answer

A) 130 L 
B) 11 L 
C) 17 L 
D) 30. L 
E) 5.6 L 
A) 130 L 
B) 11 L 
C) 17 L 
D) 30. L 
E) 5.6 L

Question 15

The pressure exerted by a gas on its container is inversely related to its Kelvin temperature.

Accepted Answer

A) True 
 B)False

Question 16

The air pressure on a rainy day is usually ________ air pressure on a sunny day.

Accepted Answer

A) higher than 
B) lower than 
C) the same as 
A) higher than 
B) lower than 
C) the same as

Question 17

Which measurement describes the pressure of a gas?

Accepted Answer

A) 315 K 
B) 1.2 g/L 
C) 2.5 L 
D) 725 mmHg 
E) 0.45 moles 
A) 315 K 
B) 1.2 g/L 
C) 2.5 L 
D) 725 mmHg 
E) 0.45 moles

Question 18

At STP, how many moles of helium gas would occupy 1.00 L?

Accepted Answer

A) 2.24 moles 
B) 224 moles 
C) 22.4 moles 
D) 0.446 moles 
E) 0.0446 moles 
A) 2.24 moles 
B) 224 moles 
C) 22.4 moles 
D) 0.446 moles 
E) 0.0446 moles

Question 19

Carbon dioxide and water vapor together account for about 5% of the air we breathe.

Accepted Answer

A) True 
 B)False

Question 20

Vapor pressure can be described as

Accepted Answer

A) the temperature at which bubbles of vapor appear in a liquid. 
B) the pressure exerted on the Earth by the particles in the air. 
C) the temperature at which the vapor pressure of a liquid equals atmospheric pressure. 
D) the pressure exerted by a gas above the surface of its liquid. 
E) the pressure within the lungs during inhalation. 
A) the temperature at which bubbles of vapor appear in a liquid. 
B) the pressure exerted on the Earth by the particles in the air. 
C) the temperature at which the vapor pressure of a liquid equals atmospheric pressure. 
D) the pressure exerted by a gas above the surface of its liquid. 
E) the pressure within the lungs during inhalation.

Exam 8: Gases

As you rise higher in Earth's atmosphere, the atmospheric pressure

At STP, what is the volume of 1.00 mole of carbon dioxide?

The kinetic energy of a gas sample is directly proportional to the Kelvin temperature of the gas.

The pressure of 5.0 L of gas increases from 1.50 atm to 1240 mmHg. What is the final volume of the gas, assuming no change in moles or temperature?

Which of the following is NOT a potential use for a hyperbaric chamber?

What is the mass of a sample of O2 gas, which has a pressure of 740.mmHg, at a temperature of 25 °C, in a volume of 250. mL?

Avogadro's Law is usually written as ________.

A gas sample in a closed, expandable container of initial volume 5.00 L was allowed to warm from 25 °C to 35 °C, at constant moles and pressure. What was its new volume?

At STP, what is the mass of 11.2 liters of O2 gas?

During inspiration, we actually make use of 100% of the oxygen in the air we breathe.

The relationship V1/n1 = V2/n2 is called ________.

Nitrogen makes up about ________ percent of the atmosphere.

In the kinetic molecular theory of gas behavior, particles of a gas tend to move ________ and collisions between them are ________.

A gas sample contains 4.0 g of CH₄ and 2.0 g of He. What is the volume of the sample at STP?

The pressure exerted by a gas on its container is inversely related to its Kelvin temperature.

The air pressure on a rainy day is usually ________ air pressure on a sunny day.

Which measurement describes the pressure of a gas?

At STP, how many moles of helium gas would occupy 1.00 L?

Carbon dioxide and water vapor together account for about 5% of the air we breathe.

Vapor pressure can be described as

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What is the mass of a sample of O₂ gas, which has a pressure of 740.mmHg, at a temperature of 25 °C, in a volume of 250. mL?

At STP, what is the mass of 11.2 liters of O₂ gas?

The relationship V₁/n₁ = V₂/n₂ is called ________.

In the kinetic molecular theory of gas behavior, particles of a gas tend to move and collisions between them are .