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operation. Problem 2 (45 points): A piston cylinder device contains 0.80 kg of nitrogen gas at 140 kPa and 37°C. The gas
Posted: Fri Jul 01, 2022 6:40 am
by answerhappygod
- Operation Problem 2 45 Points A Piston Cylinder Device Contains 0 80 Kg Of Nitrogen Gas At 140 Kpa And 37 C The Gas 1 (42.48 KiB) Viewed 38 times
operation. Problem 2 (45 points): A piston cylinder device contains 0.80 kg of nitrogen gas at 140 kPa and 37°C. The gas undergoes a slow polytropic compression according to PV13= C until the volume is reduced by one-half. The piston-cylinder device is located in a room maintained at 25°C. a) Calculate the temperature of nitrogen at the end of the compression process. b) Calculate the compression work for this process (in kJ). c) Calculate the heat transferred during this process (in kJ). Explain whether heat is being transferred from the system to the surroundings or from the surroundings to the system. d) Calculate the entropy generated during the process (in kJ/K). Comment on the physical meaning of your result. e) Locate the process on a pressure-volume diagram. Identify the initial state, final state, and the process path with respect to the dome region. Shade the area corresponding to the compression work.