A gas undergoes three processes in series that complete a cycle: Process 1 - 2:

Question

A gas undergoes three processes in series that complete a cycle:

Process 1 - 2: compression from P1 = 10 lbf/in2, V1 = 4.0 ft3 to P2 = 50 lbf/in2 during which the   

pressure volume relationship is p%u03BD = constant, u2 = u1.

Process 2 - 3: constant volume to P3 = P1, and u3 - u2 = 25 Btu.

Process 3 - 1: constant pressure.

(a) Sketch the cycle on a P-V diagram

(b) Calculate the boundary work and the net heat transfer during Process 1 - 2, in Btu

(c) Calculate the boundary work and the net heat transfer during Process 2 - 3, in Btu

(d) Calculate the boundary work and the net heat transfer during Process 3 - 1, in Btu

Explanation / Answer

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