A system consists of 2 kg of carbon dioxide gas initially at state 1, where P=1 bar, T = 300 K. The system undergoes a power cycle consisting of the following processes: Process 1-2: constant volume to P2, P >P Process 2-3: expansion with PV1.28 = constant Process 3-1: constant-pressure compression Assuming the ideal gas model and neglecting kinetic and potential energy effects, (a) sketch the cycle on a P-V diagram. (b) For P/P ranging = 4 determine the work and heat for each process