(Solution) - An ideal gas undergoes two processes in a pistoncylinder device -(2025 Original AI-Free Solution)
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An ideal gas undergoes two processes in a pistoncylinder device as follows:
1-2 Polytropic compression from T1 and P1 with a polytropic exponent n and a compression ratio of r = V1/V2.
(a) Sketch the processes on a single P-V diagram.
(b) Obtain an expression for the ratio of the compression-to- expansion work as a function of n and r.
(c) Find the value of this ratio for values of n = 1.4 and r = 6.