A gas contained within a piston-cylinder assembly undergoes three processes in series, taking the gas from state 1 through states 2 and 3, and back to state 1:
Process A (state 1 - 2): Compression with pV = constant from p1 =1 bar, V1=1.0 m3 toV2=0.2 m3.
Process B (state 2 - 3): Constant-pressure expansion to V3 = 1.0 m3
Process C (state 3 - 1): Constant volume
Sketch the processes in series on a p-V diagram labeled with pressure and volume values at each numbered state.