Gas Laws Homework #2
Combined Gas Law
Variable
Definition
Units
Temperature
Pressure
Volume
Formula:
Practice Problems:
1. To what pressure would you have to compress 48.0 L of oxygen gas at 99.3 kPa in order to
reduce its volume to 16.0 L if the temperature is held constant?
2. A 3.50 L gas sample is at standard temperature with a pressure of 86.7 kPa, is allowed to
expand to 8.01 L. What is the final temperature, in celsius, if the pressure is 56.6 kPa?
3. If a gas in a closed container (fixed volume) is pressurized from 15.0 atm to 16.0 atm and its
original temperature was 25.0 °C, what would the final temperature of the gas be?
4. At a constant pressure, a sample of argon has a volume of 43 mL at 24°C. At what is the
temperature in degrees Celsius will it have a volume of 57 mL?
5. A 5000 mL gas sample is at -50.0oC and 812 mm Hg. The volume is expanded to 7500 mL
and heated to 98.8oC. What will be the new gas pressure?