Physics Heat & Thermodynamics Level: Misc Level

Sketch a PV diagram of the following processes:a A gas expands at constant pressure p1 from volume V 1 to volume V2. It is then kept at constant volume while the pressure is reduced to p2. b. A. gas is reduced in pressure from p1 to p2 while its volume is held constant at v1. It is then expanded at constant pressure p2 to a final volume v2 . c. In which of the processes is more work done by the gas?why?