A gas contained within a piston-cylinder assembly undergoes two processes
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Question “A gas contained within a piston-cylinder assembly undergoes two processes”
A gas contained within a piston-cylinder assembly undergoes two processes, A and B, between the same end states, 1 and 2, where p1=10 bar, V1= 0.1 m3, U1=400 kJ and p2=1 bar, V2=1.0 m3, U2=200 kJ:
Process A. Process from 1 to 2 during which the pressure-volume relation is p.V = constant.
Process B: Constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to state 2
Kinetic and potential energy effects can be ignored. For each of the processes A and B, (a) sketch the process on p-V coordinates, (b) evaluate the work, in kJ, and (c) evaluate the heat transfer, in kJ.
Answer
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