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Final Rview
Test Description: Review for the final
Instructions: Answer all questions to get your test result.
1) If the volume of a container of gas is reduced, what will happen to the pressure inside the container?
A
The pressure will increase.
B
The pressure will decrease.
C
The pressure depends on the type of gas.
D
The pressure will not change.
2) As the temperature of the gas in a balloon decreases, which of the following occurs?
A
The volume of the balloon increases.
B
The density of the balloon decreases.
C
The gas pressure inside the balloon increases.
D
The average kinetic energy of a gas decreases.
3) Which of these changes would cause a decrease in the pressure of a contained gas?
A
The temperature is increased.
B
More of the gas is added to the container.
C
The average kinetic energy of the gas in increased.
D
The volume of the container is increased.
4) Boyle's law states that the ____.
A
volume of a gas varies inversely with pressure
B
temperature of a gas varies inversely with pressure
C
temperature of a gas varies directly with pressure
D
volume of a gas varies directly with pressure
5) Charles's law states that the ____.
A
pressure of a gas is directly proportional to its temperature in kelvins
B
volume of a gas is inversely proportional to its temperature in kelvins
C
volume of a gas is directly proportional to its temperature in kelvins
D
pressure of a gas is inversely proportional to its temperature in kelvins
6) A gas occupies a volume of 2.4 L at 14.1 kPa. What volume will the gas occupy at 84.6 kPa?
A
497 L
B
2.5 L
C
14 L
D
0.40 L
7) A sample of gas occupies 17 mL at -112 C. Assuming the pressure is held constant, what volume does the sample occupy at 70 C?
A
27 mL
B
10.6 mL
C
8.0 mL
D
36 mL
8) What does the ideal gas law allow a scientist to calculate that the other gas laws do not?
A
number of moles
B
pressure
C
volume
D
temperature
9) The volume of a gas is 250 mL at 340.0 kPa pressure. What will the volume be when the pressure is reduced to 50.0 kPa, assuming the temperature remains constant?
A
800 L
B
1700 L
C
1.7000 L
D
1500 L
10) The gaseous product of a reaction is collected in a 25.0-L container at 27C. The pressure in the container is 300.0 kPa and the gas has a mass of 96.0 g. How many moles of the gas are in the container?
A
1.5 moles
B
15 moles
C
30 moles
D
3.0 moles
*select an answer for all questions
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