A piston-cylinder system contains 2 kg of water initially at 80°C and a quality of 0.6. The water undergoes two processes in series: Process 1-2: Heat transfer at constant volume occurs until the tank contains only saturated vapor at a higher pressure. Process 2-3: Cooling at constant pressure until x = 0.2. Sketch the two processes in series on a T-v diagram. Neglecting kinetics and potential energy effects, determine the heat transfer work involved from process 1-3.