A piston-cylinder assembly contains 2lb of water, initially, at 100 lbf/in.2 and 400°F. The water undergoes two processed: in series: a constant-pressure process followed by a constant volume process. At the end of the constant-volume process the temperature is 300°F and the water is a two-phasc liquid-vapor mixture with a quality of 60%. Neglect kinetic and potential energy effects.
(a) Sketch T-v and p-v diagrams showing the key states an the processes.
(b) Determine the work and heat transfer for each process all in Btu.