1) A gas undergoes a cycle in a piston-cylinder assembly consisting of the following three processes: Process 1-2: Constant pressure, p = 1.4 bar, V, = 0.028 m³, W12 = 10.5 kJ Process 2–3: Compression with pV = constant, U3 = U2 Process 3–1: Constant volume, U, - U3 = -26.4 kJ There are no significant changes in kinetic or potential energy. %3D %3D %3D a. Sketch the cycle on a p-V diagram. b. Calculate the net work for the cycle, in kJ. c. Calculate the heat transfer for process 1-2, in kJ.
1) A gas undergoes a cycle in a piston-cylinder assembly consisting of the following three processes: Process 1-2: Constant pressure, p = 1.4 bar, V, = 0.028 m³, W12 = 10.5 kJ Process 2–3: Compression with pV = constant, U3 = U2 Process 3–1: Constant volume, U, - U3 = -26.4 kJ There are no significant changes in kinetic or potential energy. %3D %3D %3D a. Sketch the cycle on a p-V diagram. b. Calculate the net work for the cycle, in kJ. c. Calculate the heat transfer for process 1-2, in kJ.
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Transcribed Image Text:1) A gas undergoes a cycle in a piston-cylinder assembly consisting of the following
three processes:
Process 1-2: Constant pressure, p = 1.4 bar, V, = 0.028 m³, W12 = 10.5 kJ
Process 2–3: Compression with pV = constant, U3 = U2
Process 3–1: Constant volume, U, - U3 = -26.4 kJ
There are no significant changes in kinetic or potential energy.
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a. Sketch the cycle on a p-V diagram.
b. Calculate the net work for the cycle, in kJ.
c. Calculate the heat transfer for process 1-2, in kJ.
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