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Air expands in a polytropic process (n = 1.35) from 2 MPa and 1200 K to...

Air expands in a polytropic process (n = 1.35) from 2 MPa and 1200 K to 150 kPa in a piston/cylinder.   Determine per unit mass of air the work produced and the heat transferred during the expansion process in kJ/kg.

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