A pistoncylinder device initially contains 2 L of air at 100 kPa and 25 deg C Air is now compressed to a final state of 600 kPa and 150 deg C The useful work input is 1 2 kJ Assuming the surroundings are at 100 kPa and 25 deg C, determine (a) The energy of the air at the initial and the final states, (b) The minimum work that must be supplied to accomplish this compression process, and (c) The second law efficiency of this process AIR Pi 100 kPa Ti 25C

Question: A pistoncylinder device initially contains 2 L of air at 100 kPa and 25°C. Air is now compressed to a final state of 600 kPa

A piston€“cylinder device initially contains 2 L of air at 100 kPa and 25°C. Air is now compressed to a final state of 600 kPa and 150°C. The useful work input is 1.2 kJ. Assuming the surroundings are at 100 kPa and 25°C, determine
(a) The energy of the air at the initial and the final states,
(b) The minimum work that must be supplied to accomplish this compression process, and
(c) The second-law efficiency of this process.

A piston€“cylinder device initially contains 2 L

AIR Pi = 100 kPa Ti = 25C

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