4. If a gas is held at constant pressure and is heated, which of the following would occur?
A. The gas expands proportionally to the increase in temperature.
B. The gas contracts proportionally to the increase in temperature
C. The gas volume is a constant because pressure is
constant
D. None of the above.

5. The volume of a gas at constant pressure is independent of
temperature
A. True
B. False

6. Air will expand about the same amount as propane with the same change in temperature over ordinary temperature ranges.
A. True
B. False

8. Review your graphs for the four gases. How do you explain the
odd gas?
A. It was caused by an error in the apparatus.
B. It had a chemical reaction at around 20'C.
C. It has a boiling point around 35°C.
Please help