1. One mole of methane gas held within a piston/cylinder, at an initial condition of 600K and 5MPa, undergoes the following reversible steps. Calculate U, Q, and WEC for each step and for the cycle. Use a temperature-independent heat capacity of CP=44J/molK. Step 1: The gas is expanded to 3.92MPa isothermally, absorbing a quantity of heat QH. Step 2: The gas is expanded adiabatically to 0.1MPa. Step 3: The gas is compressed isothermally to 0.128MPa. Step 4: The gas is compressed adiabatically to the initial state