Problem 3 A rigid tank contains 1.5 kg of R-134a at 40C, 500 kPa. The tank...

 

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Problem 3 A rigid tank contains 1.5 kg of R-134a at 40C, 500 kPa. The tank is placed in a refrigerator that brings it to -20C. Find the process heat transfer and show the process in a P-v diagram. Problem 4 Two kilograms of water contained in a piston cylinder, at 120C with a quality of 25%, has the temperature raised by 20C in a constant pressure process. What are the heat transfer and work in the process? Problem 5 A piston cylinder contains 1.5 kg water at 200 kPa, 150C. It is now heated in a process where pressure is linearly related to volume, to a state of 600 kPa, 350C. Find the final volume, the work and the heat transfer in the process. Problem 3 A rigid tank contains 1.5 kg of R-134a at 40C, 500 kPa. The tank is placed in a refrigerator that brings it to -20C. Find the process heat transfer and show the process in a P-v diagram. Problem 4 Two kilograms of water contained in a piston cylinder, at 120C with a quality of 25%, has the temperature raised by 20C in a constant pressure process. What are the heat transfer and work in the process? Problem 5 A piston cylinder contains 1.5 kg water at 200 kPa, 150C. It is now heated in a process where pressure is linearly related to volume, to a state of 600 kPa, 350C. Find the final volume, the work and the heat transfer in the process.