2. (problem 3.33 from text) A closed, rigid tank contains Refrigerant 134a, initially at 100°C. The refrigerant is cooled until it becomes a saturated vapor at 20°C. For the refrigerant,

determine the initial and final pressures, each in bar, and the heat transfer, in kJ/kg. Kinetic and potential energy effects can be ignored. Sketch the process on the P-v and T-v diagrams.