B. A frictionless piston (diameter 12.5 cm) contains 1.12 kg of refrigerant (R134a) in a vertical piston- cylinder arran

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B A Frictionless Piston Diameter 12 5 Cm Contains 1 12 Kg Of Refrigerant R134a In A Vertical Piston Cylinder Arran 1 (27.6 KiB) Viewed 26 times

B. A frictionless piston (diameter 12.5 cm) contains 1.12 kg of refrigerant (R134a) in a vertical piston- cylinder arrangement. The local atmospheric pressure is 95.9 kPa. The initial pressure of the R-134a is 140 kPa and its temperature is 0°C. The piston-cylinder is now put into a cold room where the temperature of the piston cylinder (and its contents) drops to (-22°C). 3. (10 pts) In B, what is the mass of the piston (kg)? m = kg 4. (06 pts) In B, what is the final volume of the refrigerant (mº)? V= m' 5. (14 pts) in B, what is the work (kJ)? Magnitude W= ku_in__out 6. (10 pts) In B, what is the heat transfer (kJ)? Magnitude Q= ku__in__out