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Gas Law Test Review2
Test Description: Gas Law Test Review2
Instructions: Answer all questions to get your test result.
1) 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
236 L
B
480 L
C
111 L
D
60 L
2) A mixture of four gases exerts a total pressure of 860 mm Hg. Gases A and B each exert 220 mm Hg. Gas C exerts 110 mm Hg. What pressure is exerted by gas D?
A
800 mm Hg
B
165 mm Hg
C
310 mm Hg
D
860 mm Hg
3) If five gases in a cylinder each exert 1 atm, what is the total pressure exerted by the gases?
A
5 atm
B
0.5 atm
C
1 atm
D
0.2 atm
4) The standard molar volume of a gas at STP is
A
g/22.4 L.
B
1 L.
C
2 L
D
22.4 L
5) 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
6) Calculate the approximate temperature of a 0.50 mol sample of gas at 750 mm Hg and a volume of 12 L.
A
–7ºC
B
11ºC
C
15ºC
D
288ºC
7) 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
30. atm
B
1.0 atm
C
3.0 atm
D
0.030 atm
8) According to the kinetic-molecular theory, particles of matter
A
are in constant motion
B
are always fluid.
C
have different colors
D
have different shapes
9) According to the kinetic-molecular theory, gases condense into liquids because of
A
atmospheric pressure.
B
elastic collisions
C
forces between molecules
D
gravity.
10) According to the kinetic-molecular theory, which substances are made of particles?
A
ideal gases only
B
all gases
C
all matter except solids
D
all matter
*select an answer for all questions
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