Question
As shown, a gas within a pistoncylinder assembly undergoes a thermodynamic cycle consisting of three processes in series: Process 12: Compression with U2 = U1.
As shown, a gas within a pistoncylinder assembly undergoes a thermodynamic cycle consisting of three processes in series: Process 12: Compression with U2 = U1. Process 23: Constant-volume cooling to p3 = 140 kPa, V3 = 0.028 m3. Process 31: Constant-pressure expansion with W31 = 10.5 kJ. For the cycle, Wcycle = 28.3 kJ. There are no changes in kinetic or potential energy. Determine (a) the volume at state 1, in m3 (b) the work and heat transfer for process 12, each in kJ. (c) Can this be a power cycle? A refrigeration cycle? Explain. (You must identify the correct signs for heat and work)
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