A gas confined in a cylinder, initially at 20 °C, 100 kPa and with a specific volume of 0.0244 m3/mol, is undergoing the following series of processes: Step 1: A constant pressure process when it receives 150 J of work Step 2: A constant volume process when it receives 1500 J of heat Calculate, on the basis of 1 mole of gas, the total change of internal energy and enthalpy as well as the total work and heat transferred. For all processes, assume that PV/T remains constant and that CV = 20.785 and CP = 29.100 J·mol−1·K−1