Modified True/False
Indicate
whether the sentence or statement is true or false. If false,
change the identified word or phrase to make the sentence or statement
true.
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1. |
At
constant temperature, the pressure exerted by a gas is directly proportional
to its volume. ____________________
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2. |
As
you rise higher in altitude, the boiling point of water decreases
due to the decrease in air pressure. ____________________
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3. |
Car
manufacturers recommend that you check and adjust the air pressure in
your car tires when the tires are cold. ____________________
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4. |
Under
the Kyoto Protocol, Canada must reduce its emissions of CFCs.
____________________
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5. |
Ground-level ozone is formed by the following reactions:
NO2(g) + sunlight ® NO(g) + O(g)
O(g)
+ O2(g) ® O3(g)
____________________
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Multiple Choice
Identify
the letter of the choice that best completes the statement or answers
the question.
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6. |
The
volume of a gas can be reduced by increasing the pressure acting on
the gas (assuming constant temperature). The difference in volume is
best explained by which property of gases?
a. |
Gas
molecules tend to move in a straight line. |
b. |
Gas molecules are very small. |
c. |
Gas
molecules only collide with one another. |
d. |
Gas molecules are very far apart at low
pressure. |
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7. |
Which
of the following is NOT a property of gases?
a. |
Gases are compressible. |
b. |
Gases
have variable shape and volume. |
c. |
Gases expand to fill their container. |
d. |
Gases
can have densities that are greater than 1.0 g/mL, the density
of water. |
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8. |
Doubling the pressure while keeping the temperature constant causes
the volume of a gas to change from 1000 mL to
a. |
500 mL |
c. |
1100 mL |
b. |
1000
mL |
d. |
2000
mL |
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9. |
Which
of the following is NOT a greenhouse gas?
a. |
carbon dioxide |
c. |
methane |
b. |
ozone |
d. |
CFCs |
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10. |
Which
of the following is NOT a component of “smog”?
a. |
stratospheric
ozone |
c. |
fine
particles |
b. |
ground-level ozone |
d. |
VOCs |
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