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Gases
Test Description: Chapter 10 and 12 Chemistry Addison Wesley
Instructions: Answer all questions to get your test result.
1) As a gas is compressed in a cylinder its mass
A
decreases
B
increases
C
stays the same
D
decreases and then expands to its original mass.
2) As a gas is compressed in a cylinder its pressure
A
decreases and then expands to its original pressure.
B
decreases
C
stays the same
D
increases
3) As a gas is compressed in a cylinder its volume
A
stays the same.
B
decreases and then expands to its original volume.
C
decreases.
D
increases.
4) As a gas is compressed in a cylinder the number of molecules
A
decreases and then expands to its original number.
B
decreases.
C
increases.
D
stays the same.
5) The gas law that states that the pressure of a gas is inversely proportional to its volume is
A
Gay- Lusaac's Law
B
Ideal gas law.
C
Charles' Law.
D
Boyle's Law.
6) According to the Kinetic Molecule Theory ideal gas particles
A
have both attractive and repulsive forces between the particles.
B
have repulsive forces between the gas particles.
C
exert no force on each other.
D
have attractive forces between the gas particles.
7) The temperature of a gas is the average
A
kinetic energy of the gas particles.
B
potential energy of the gas particles.
C
size of the gas particles.
D
elasticity of the gas particles.
8) According to the Kinetic Molecule Theory ideal gas particles themselves are said to
A
must be added to the space between the particles in order to get the true volume.
B
to have negligible volume compared to the total volume.
C
make up most of the volume of a gas.
D
have no mass.
9) According to the Kinetic Molecule Theory ideal gas particles collisions are
A
gain energy as they collide.
B
perfectly elastic.
C
never collide.
D
lose energy as they collide.
10) Gases under the conditions of STP are at
A
a temperature of 0 C and pressure of 2 atm.
B
a temperature of 273 K and a pressure of 1 atm.
C
a temperature of 273 C and pressure of 1 atm.
D
a temperature of 273K and pressure of 2 atm.
11) The gas law that states the volume of a gas is directly proportional to the temperature is
A
Ideal gas law.
B
Boyle's Law.
C
Charles' Law.
D
Gay Lusaac's Law.
12) The gas law that states the pressure of a gas is directly proportional to the temperature is
A
Ideal gas law.
B
Gay Lusaac's Law.
C
Charles' Law.
D
Boyle's Law.
13) The temperature that is considered absolute zero is
A
0 K
B
O C
C
-273 K
D
273 K
14) A rigid container holds a gas at a pressure of 55 kPa and a temperature of -100 C. If you are asked to find the temperature if the pressure changes to 100kPa what law would you use to solve?
A
Gay Lusaac's Law.
B
Charles' Law.
C
Boyle's Law
D
Just forget it and go home.
15) If you are asked to find the volume of a sample of CO2 at 1 atm that was increased to a pressure of 3 atm what law would you use?
A
Charles' Law.
B
Just forget it and go home.
C
Gay Lusaac's Law.
D
Boyle's Law
16) Avogadro's hypothesis says that
A
equal masses of liquids have equal numbers of particles.
B
equal volumes of solids have equal numbers of particles.
C
equal volumes of gases have equal numbers of particles.
D
equal volumes of liquids have equal numbers of particles.
17) Exactly 10.0 L of a gas at 25 C is heated to 100 C. What law would you use to find the new volume?
A
Forget laws you are just going to put your head down on the desk.
B
Charles' Law
C
Gay -Lusaac's Law
D
Boyle's Law
18) 760 mm of Hg is equal to
A
101.3 kPa and 1 atm
B
1 kPa and 101.3 atm
C
1 atm and 100 kPa
D
760 atm and 101.3 kPa
19) One mole of any gas at STP has a volume of
A
2.24 L
B
22.4 g
C
22.4 L
D
all gases have different volumes under these conditions.
*select an answer for all questions
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