A gas undergoes three processes in series that complete a cycle:
Process 1->2: compression from P1 = 10 lbf/in^2, V1 = 4.0 ft^3 to P2 = 50 lbf/in^2 during which the pressure volume relationship is
pv = constant.
Process 2->3: constant volume to P3 = P1.
Process 3->1: constant pressure.
(a) Sketch the cycle on a P-V diagram
(b) Calculate the boundary work and the net heat transfer during Process 1->2, in Btu
(c) Calculate the boundary work and the net heat transfer during Process 2->3, in Btu
(d) Calculate the boundary work and the net heat transfer during Process 3->1, in Btu