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Air that initially occupies 0.72 m3 at a gauge pressure of 140 kPa is expanded isothermally...

Air that initially occupies 0.72 m3 at a gauge pressure of 140 kPa is expanded isothermally to a pressure of 101.3 kPa and then cooled at constant pressure until it reaches its initial volume. Compute the work done by the air. (Gauge pressure is the difference between the actual pressure and atmospheric pressure.)

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