A piston-cylinder device with a set of stops contains 12 kg of refrigerant- 134a. Initially 9 kg of refrigerant is in the liquid form, and the temperature is -12oC. Now heat is transferred from the atmosphere at 25oC to the refrigerant until the piston hits the stop, at which point the volume is 380 L. Heating is continued until the temperature of the refrigerant reaches the atmospheric value. Determine.
(a) The final pressure.
(b) The work transfer.
(c) The heat transfer.
(d) The entropy generation during the entire process.