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Question: d a pistoncylinder device contains 02kg of air at 23mpa...

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d) A piston-cylinder device contains 0.2kg of air at 2.3MPa and 370°C. The air is first expanded isothermally to 800KPa, then compressed polytropically with the polytropic exponent of 1.25 to the initial pressure and finally compressed at constant pressure to the initial state. Determine the net work done by the cycle.

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