Gas Law Practice
1. A high altitude balloon contains 30.0 L of helium gas at 103 kPa. What is the volume when the
balloon rises to an altitude where the pressure is only 25.0 kPa? (Assume that the temperature
stays the same.)
2. The pressure on 2.50 L of anesthetic gas changes from 105 kPa to 40.5 kPa. What will be the
new volume if the temperature remains constant?
3. A gas with a volume of 4.00 L at a pressure of 205 kPa is allowed to expand to a volume of
12.0L. What is the pressure in the container if the temperature remains constant?
4. A balloon inflated in a room at 24 ºC has a volume of 4.00 L. The balloon is then heated to a
temperature of 58 ºC. What is the new volume if the pressure remains constant?
5. If a sample of gas occupies 6.80 L at 325 ºC, what will be its volume at 25 ºC if the pressure
does not change?
6. Exactly 5.00 L of air at -50.0 ºC is warmed to 100.0 ºC. What is the new volume if the pressure remains constant?
7. The gas left in a used aerosol can is at a pressure of 103 kPa at 25 ºC. If this can is thrown into
a fire, what is the pressure of the gas when its temperature reaches 928 ºC?
8. A gas has a pressure of 6.58 kPa at 539 K. What will be the pressure at 211 K if the volume
does not change?
9. The pressure in an automobile tire is 198 kPa at 27 ºC. At the end of a trip on a hot sunny day,
the pressure has risen to 225 kPa. What is the temperature of the air in the tire?
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