A 0.28 m3 insulated piston-cylinder device initially contains 0.80 kg of air at 18.8°C. At this state, the piston is free to move. Now air at 500 kPa and 75°C is allowed to enter the cylinder from a supply line until the volume increases by 45.6 percent. The gas constant of air is given as R=0.287 kJ/kg.K. The work done [in kJ] is
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A 0.28 m3 insulated piston-cylinder device initially contains 0.80 kg of air at 18.8°C. At this state, the piston is free to move. Now air at 500 kPa and 75°C is allowed to enter the cylinder from a supply line until the volume increases by 45.6 percent. The gas constant of air is given as R=0.287 kJ/kg.K. The work done [in kJ] is
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