15 Questions

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• 1.
Calculate the approximate volume of a 0.600 mol sample of gas at 15.0ºC and a pressure of 1.10 atm.
• A.

12.9 L

• B.

22.4 L

• C.

24.6 L

• D.

129 L

• 2.
What determines the average kinetic energy of the molecules of any gas?
• A.

Temperature

• B.

Pressure

• C.

Temperature and pressure

• D.

Molar mass

• 3.
According to the kinetic-molecular theory, particles of a gas
• A.

Attract each other but do not collide

• B.

Repel each other and collide

• C.

Neither attract nor repel each other but collide

• D.

Neither attract nor repel each other and do not collide

• 4.
What is the pressure exerted by 1.2 mol of a gas with a temperature of 20.ºC and a volume of 9.5 L?
• A.

0.030 atm

• B.

1.0 atm

• C.

3.0 atm

• D.

30. atm

• 5.
What does the constant collision of gas molecules against the inside walls of a container produce?
• A.

Temperature

• B.

Pressure

• C.

Density

• D.

Diffusions

• 6.
Convert the pressure 0.75 atm to mm Hg.
• A.

430 mm Hg

• B.

570 mm Hg

• C.

101.325 mm Hg

• D.

760 mm Hg

• 7.
Convert the pressure 1.30 atm to kPa.
• A.

2 kPa

• B.

115 kPa

• C.

132 kPa

• D.

245 kPa

• 8.
Standard temperature is exactly
• A.

100 degrees C

• B.

0 degrees C

• C.

273 degrees C

• D.

0 K

• 9.
Standard pressure is exactly.
• A.

1 atm

• B.

760 atm

• C.

101 atm

• D.

14.7 atm

• 10.
The volume of a gas is 400.0 mL when the pressure is 1.00 atm. At the same temperature, what is the pressure at which the volume of the gas is 2.0 L?
• A.

800 atm

• B.

0.5 atm

• C.

5.0 atm

• D.

0.20 atm

• 11.
A sample of gas collected at 750. mm Hg occupies 250. mL. At constant temperature, what pressure does the gas exert if the volume increases to 300. mL?
• A.

50 mm Hg

• B.

550 mm Hg

• C.

625 mm Hg

• D.

900 mm Hg

• 12.
The volume of a gas is 5.0 L when the temperature is 5.0ºC. If the temperature is increased to 10.0ºC without changing the pressure, what is the new volume?
• A.

10.0 L

• B.

5.1 L

• C.

4.8 L

• D.

2.5 L

• 13.
A 180.0 mL volume of gas is measured at 87.0ºC. If the pressure remains unchanged, what is the volume of the gas at standard temperature?
• A.

0.0 mL

• B.

0.5 mL

• C.

136 mL

• D.

410 mL

• 14.
The volume of a sample of oxygen is 300.0 mL when the pressure is 1 atm and the temperature is 27.0ºC. At what temperature is the volume 1.00 L and the pressure 0.500 atm?
• A.

22.0 degrees C

• B.

45.0 degrees C

• C.

500 K

• D.

227 degrees C

• 15.
At 0.500 atm and 15.0ºC a sample of gas occupies 120. L. What volume does it occupy at 0.250 atm and 10.0ºC?
• A.

60 L

• B.

111 L

• C.

236 L

• D.

480 L