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Question: queation ref no 71 a pistoncylinder device contains 105 kg...

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Queation Ref. No: 71 A piston-cylinder device contains 1.05 kg of air initially at 2086 kPa and 385 oC. The air is first expanded isothermally to 458 kPa, then compressed polytropically with a polytropic exponent of 2 to the initial pressure, and finally compressed at the constant pressure to the initial state. Determine the net work of the cycle. Net work kJ.
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