Question 1

The volume of a gas with an initial pressure of 380 mmHg atm increases from 5.0 L to 8.0 L. What is the final pressure of the gas,in atm, assuming no change in moles or temperature?

Accepted Answer

A) 238 atm 
B) 2.4 atm 
C) 0.31 atm 
D) 0.80 atm 
E) 8.0 atm 
A) 238 atm 
B) 2.4 atm 
C) 0.31 atm 
D) 0.80 atm 
E) 8.0 atm C

Question 2

What is the pressure, in mmHg, of a 4.00 g sample of O2 gas, which has a temperature of 30.0 °C, and a volume of 3000 mL?

Accepted Answer

A) 0.788 mmHg 
B) 1.04 mmHg 
C) 78.0 mmHg 
D) 7880 mmHg 
E) 788 mmHg 
A) 0.788 mmHg 
B) 1.04 mmHg 
C) 78.0 mmHg 
D) 7880 mmHg 
E) 788 mmHg E

Question 3

In a gas, the distance between the particles is

Accepted Answer

A) very close relative to the size of the molecules. 
B) close relative to the size of the molecules. 
C) fixed relative to the size of the molecules. 
D) small relative to the size of the molecules. 
E) very large relative to the size of the molecules. 
A) very close relative to the size of the molecules. 
B) close relative to the size of the molecules. 
C) fixed relative to the size of the molecules. 
D) small relative to the size of the molecules. 
E) very large relative to the size of the molecules. E

Question 4

The temperature of a 500. mL sample of gas increases from 150. K to 350. K. What is the final volume of the sample of gas, if the pressure and moles in the container is kept constant?

Accepted Answer

A) 210. mL 
B) 1170 mL 
C) 0.0095 mL 
D) 0.0470 mL 
E) 110. mL 
A) 210. mL 
B) 1170 mL 
C) 0.0095 mL 
D) 0.0470 mL 
E) 110. mL

Question 5

The volume of a sample of gas, initially at 25 °C and 158 mL, increases to 450. mL. What is the final temperature of the sample of gas, if the pressure in the container is kept constant?

Accepted Answer

A) 8.8 °C 
B) 71 °C 
C) 105 °C 
D) -168 °C 
E) 576 °C 
A) 8.8 °C 
B) 71 °C 
C) 105 °C 
D) -168 °C 
E) 576 °C

Question 6

Gay-Lussac's Law is usually written as ________.

Accepted Answer

The answer of Gay-Lussac's Law is usually written as ________....

Question 7

At STP, the molar volume of a gas is ________.

Accepted Answer

The answer of At STP, the molar volume of a...

Question 8

In the kinetic molecular theory of gas behavior, the distance between gas molecules is assumed to be ________ the diameter of the gas molecules.

Accepted Answer

A) 22.4 times 
B) small relative to 
C) dependent on 
D) approximately the same as 
E) large relative to 
A) 22.4 times 
B) small relative to 
C) dependent on 
D) approximately the same as 
E) large relative to

Question 9

The temperature of a 350. mL sample of gas increases from 27 °C . to 227 °C . What is the final volume of the sample of gas, if the pressure and moles in the container is kept constant?

Accepted Answer

A) 583 mL 
B) 210. mL 
C) 2940 mL 
D) 41.6 mL 
E) 110. mL 
A) 583 mL 
B) 210. mL 
C) 2940 mL 
D) 41.6 mL 
E) 110. mL

Question 10

The total pressure in a mixture of gases is equal to the partial pressure(s) of

Accepted Answer

A) the gas with the greatest number of moles. 
B) the gas with the smallest number of moles. 
C) the gas with the highest molecular weight. 
D) the gas that occupies the largest volume. 
E) all the gases added together. 
A) the gas with the greatest number of moles. 
B) the gas with the smallest number of moles. 
C) the gas with the highest molecular weight. 
D) the gas that occupies the largest volume. 
E) all the gases added together.

Question 11

A barometer is usually filled with ________.

Accepted Answer

The answer of A barometer is usually filled with ________....

Question 12

In deoxygenated blood, the partial pressure of carbon dioxide is greater than the partial pressure of oxygen left.

Accepted Answer

A) True 
 B)False

Question 13

A balloon is filled with helium gas. For the question(s) that follow, select the letter of the balloon diagram that corresponds to the given change in conditions.  
-The balloon is put into a chamber whose pressure is less than the atmospheric pressure and at atmospheric temperature.

Accepted Answer

A) A 
B) B 
C) C 
D) A and B 
E) B and C 
A) A 
B) B 
C) C 
D) A and B 
E) B and C

Question 14

The mathematical expression of the ideal gas law is

Accepted Answer

A) P1V1 = P2V2. 
B)   =  
C)   =  
D) PV = nRT. 
E) PT = P1 + P2 + P3. 
A) P1V1 = P2V2. 
B)   =  
C)   =  
D) PV = nRT. 
E) PT = P1 + P2 + P3.

Question 15

A tank contains helium gas at 490 mmHg, nitrogen gas at 0.75 atm, and neon at 520 torr. What is the total pressure in atm?

Accepted Answer

A) 2.1 atm 
B) 0.55 atm 
C) 1.0 × 103 atm 
D) 1.5 atm 
E) 1600 atm 
A) 2.1 atm 
B) 0.55 atm 
C) 1.0 × 103 atm 
D) 1.5 atm 
E) 1600 atm

Question 16

The Ideal Gas Law is usually written as ________.

Accepted Answer

The answer of The Ideal Gas Law is usually written...

Question 17

According to Avogadro's law

Accepted Answer

A) the volume of a gas is inversely related to the number of moles at constant temperature and pressure. 
B) the volume of a gas is inversely related to the number of moles at standard temperature and pressure. 
C) the volume of a gas depends only on the temperature and pressure. 
D) the volume of a gas depends only on the number of moles in the sample. 
E) the volume of a gas is directly related to the number of moles at constant temperature and pressure. 
A) the volume of a gas is inversely related to the number of moles at constant temperature and pressure. 
B) the volume of a gas is inversely related to the number of moles at standard temperature and pressure. 
C) the volume of a gas depends only on the temperature and pressure. 
D) the volume of a gas depends only on the number of moles in the sample. 
E) the volume of a gas is directly related to the number of moles at constant temperature and pressure.

Question 18

An autoclave is used to sterilize surgical equipment because

Accepted Answer

A) it allows water to boil at temperatures less than 100 °C. 
B) it allows water to boil at 100 °C at pressures less than 1 atm. 
C) it allows water to boil at 100 °C at pressures greater than 1 atm. 
D) it allows water to boil at temperatures above 100 °C. 
E) it provides very high temperatures and very low pressures. 
A) it allows water to boil at temperatures less than 100 °C. 
B) it allows water to boil at 100 °C at pressures less than 1 atm. 
C) it allows water to boil at 100 °C at pressures greater than 1 atm. 
D) it allows water to boil at temperatures above 100 °C. 
E) it provides very high temperatures and very low pressures.

Question 19

A balloon is filled with helium gas. For the question(s) that follow, select the letter of the balloon diagram that corresponds to the given change in conditions.  
-The temperature is changed from 50 °C to -150 °C at constant pressure.

Accepted Answer

A) A 
B) B 
C) C 
D) A and B 
E) B and C 
A) A 
B) B 
C) C 
D) A and B 
E) B and C

Question 20

The volume of a gas with a pressure of 1.2 atm increases from 1.0 L to 4.0 L. What is the final pressure of the gas, assuming no change in moles or temperature?

Accepted Answer

A) 1.2 atm 
B) 0.30 atm 
C) 3.3 atm 
D) 4.8 atm 
E) 1.0 atm 
A) 1.2 atm 
B) 0.30 atm 
C) 3.3 atm 
D) 4.8 atm 
E) 1.0 atm

Exam 8: Gases

The volume of a gas with an initial pressure of 380 mmHg atm increases from 5.0 L to 8.0 L. What is the final pressure of the gas,in atm, assuming no change in moles or temperature?

What is the pressure, in mmHg, of a 4.00 g sample of O2 gas, which has a temperature of 30.0 °C, and a volume of 3000 mL?

In a gas, the distance between the particles is

The temperature of a 500. mL sample of gas increases from 150. K to 350. K. What is the final volume of the sample of gas, if the pressure and moles in the container is kept constant?

The volume of a sample of gas, initially at 25 °C and 158 mL, increases to 450. mL. What is the final temperature of the sample of gas, if the pressure in the container is kept constant?

Gay-Lussac's Law is usually written as ________.

At STP, the molar volume of a gas is ________.

In the kinetic molecular theory of gas behavior, the distance between gas molecules is assumed to be ________ the diameter of the gas molecules.

The temperature of a 350. mL sample of gas increases from 27 °C . to 227 °C . What is the final volume of the sample of gas, if the pressure and moles in the container is kept constant?

The total pressure in a mixture of gases is equal to the partial pressure(s) of

A barometer is usually filled with ________.

In deoxygenated blood, the partial pressure of carbon dioxide is greater than the partial pressure of oxygen left.

A balloon is filled with helium gas. For the question(s) that follow, select the letter of the balloon diagram that corresponds to the given change in conditions. -The balloon is put into a chamber whose pressure is less than the atmospheric pressure and at atmospheric temperature.

The mathematical expression of the ideal gas law is

A tank contains helium gas at 490 mmHg, nitrogen gas at 0.75 atm, and neon at 520 torr. What is the total pressure in atm?

The Ideal Gas Law is usually written as ________.

According to Avogadro's law

An autoclave is used to sterilize surgical equipment because

A balloon is filled with helium gas. For the question(s) that follow, select the letter of the balloon diagram that corresponds to the given change in conditions. -The temperature is changed from 50 °C to -150 °C at constant pressure.

The volume of a gas with a pressure of 1.2 atm increases from 1.0 L to 4.0 L. What is the final pressure of the gas, assuming no change in moles or temperature?

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What is the pressure, in mmHg, of a 4.00 g sample of O₂ gas, which has a temperature of 30.0 °C, and a volume of 3000 mL?