A 0.500 mol sample of an ideal diatomic gas at 400 kPa and 300K expands until the pressure decreases to 160 kPa. Find the final temperature and volume of the the pressure decreases to 160 kPa. Find the final temperature and volume of the gas, the work done by the gas, and the heat absorbed by the gas if the gas, the work done by the gas, and the heat absorbed by the gas if the expansion is (b) adiabatic. expansion is (b) adiaba