Carbon dioxide gas contained within a piston-cylinder assembly undergoes three processes in series. Sketch the processes on P-V coordinates and evaluate the work for each process in kJ. Process 1-2: Expansion from P1= 5 bar, V1=.2 m^3 to v2= 1 m^3 during which the pressure volume relationship is PV=constant. Process 2-3: Constant volume heating from 2 to state 3 where P3= 5 bar. Process 3-1: constant pressure compression to the initial state.