Methane gas is expanded adiabatically and reversibly from a volume of 1.43L, at a temperature of 25C and a pressure of 3 bars, until the volume is 2.86L. The heat capacity Cp of methane can be taken to be 35.31JK-1mol-1.
1. Determine the pressure and temperature of the gas, assumed to be ideal, after the expansion.
2. Determine q, w, ΔU, and ΔH for the gas.