This problem applies the Peng$-$Robinson equation of state to an adiabatic compressor.

Be sure your answer is for the specified units of $k\frac{J}{m}ol,$ not $\frac{J}{m}ol.$

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$($b$)$ What is the work needed $(k\frac{J}{m}ol)$ if the compressor efficiency is ${}_C=0\mathrm{.}8?$

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