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Dalton's Law

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

Which equation represents Dalton's Law?

a)

e=mc2

b)

PV=nRT

c)

P1/T1=P2/T2

d)

Ptotal=P1, P2, P3...

2.

Three gases, Ar, N2 and H2 are mixed in a container. Ar has a pressure of 255 torr, N2 has a pressure of 228 torr and H2 has pressure of 752torr. What is the total pressure in the container?

a)

483torr

b)

270torr

c)

1235torr

3.

Which is the correct equation for Dalton's law representing a mixture o three gases

a)

PT = P1 - P2 - P3

b)

PT = P+ P2 - P3

c)

P1 = PT - P2 - P3

4.

The partial pressure of a gas increases if

a)

Some particles of the gas are removed

b)

The temperature of the gas is lowered

c)

The gas is placed in a larger container

d)

The gas is placed in a smaller container

5.

The partial pressure of a gas is not affected by:

a)

the temperature

b)

The volume of the container

c)

The identity of the gas

6.

Three gases, Ar, N2 and H2 are mixed in a 500L container. Ar has a pressure of 255 torr, N2 has a pressure of 228torr and H2 has pressure of 752torr. What is the total pressure in the container?

a)

483torr

b)

270torr

c)

1235torr

7.

Dalton's law of...

a)

Partial Pressure

b)

Thermodynamics

c)

Ideal Gas

d)

Physics

8.

Calculate the partial pressure of H2 at 20oC when the vapor pressure of water is 17.5torr. The total pressure of the gases is 750torr.

a)

767.5torr

b)

732.5torr

c)

42.86torr

9.

A mixture of hydrogen, nitrogen, and water vapor has a total pressure of 864 mmHg. The partial pressure of hydrogen is 220 mmHg and that of nitrogen is 410 mmHg. What is the partial pressure of water vapor?

a)

234 mmHg

b)

1.37 mmHg

c)

2.64 mmHg

d)

1, 494 mmHg

10.

A 250 mL sample of oxygen is collected over water at 25° C and 760.0 torr pressure. What is the pressure of the dry gas alone? (Vapor pressure of water at 25° C = 23.8 torr)

a)

783.8 torr

b)

205.38 torr

c)

1250 torr

d)

736.2 torr

11.

A container holds a mixture of two different gases. The oxygen in a container exerts 80 mmHg of pressure on the inside of the container. The total pressure inside the container is 120 mmHg. What is the pressure of the other gas in the container?

a)

200 mmHg

b)

80 mmHg

c)

40 mmHg

d)

120 mmHg

12.

A container holds three gases: oxygen, carbon dioxide, and helium. The partial pressures of the three gases are 2.00 atm, 3.00 atm, and 4.00 atm, respectively. What is the total pressure inside the container?

a)

900 atm

b)

0.90 atm

c)

9.00 atm

d)

920 atm

13.

Dalton's Law

a)

The total pressure of a gas mixture is equal to the sum of the partial pressures of each individual gas.

b)

The total pressure of a gas mixture is equal to the difference of the partial pressures of each individual gas.

c)

The total pressure of a gas mixture is equal to the product of the partial pressures of each individual gas.

d)

The total pressure of a gas mixture is equal to the average of the partial pressures of each individual gas.

14.

Dalton's Law

a)

The partial pressure of a gas in a mixture is directly proportional to its mole fraction.

b)

The partial pressure of a gas in a mixture is inversely proportional to its mole fraction.

c)

The partial pressure of a gas in a mixture is independent of its mole fraction.

d)

The partial pressure of a gas in a mixture is equal to the total pressure of the mixture.

15.

Dalton's Law

a)

The partial pressure of a gas increases with an increase in temperature, assuming volume is constant.

b)

The partial pressure of a gas decreases with an increase in temperature, assuming volume is constant.

c)

The partial pressure of a gas remains constant with an increase in temperature, assuming volume is constant.

d)

The partial pressure of a gas is unaffected by temperature changes.