Part A

An ideal gas expands at a constant total pressure of 3.1 atm from 450 mL to 810 mL . Heat then flows out of the gas at constant volume, and the pressure and temperature are allowed to drop until the temperature reaches its original value.

Calculate the total work done by the gas in the process.
Express your answer to two significant figures and include the appropriate units.


Part B

Calculate the total heat flow into the gas.
Express your answer to two significant figures and include the appropriate units.