A cylinder/piston contains 100L of air at 25 C, 110 kPa. The air is compressed in a reversible polytropic process to a final state of 200 C, 800 kPa. Assume the heat transfer is with the ambient at 25 C. Find the work done by the air.

A cylinder/piston contains 100L of air at 25 C, 110 kPa. The air is co

1.	A cylinder/piston contains 100L of air at 25 C, 110 kPa. The air is compressed in a reversible polytropic process to a final state of 200 C, 800 kPa. Assume the heat transfer is with the ambient at 25 C. Find the work done by the air.
A.	-11.28 kJ
B.	-21.28 kJ
C.	-31.28 kJ
D.	-41.28 kJ
Answer» C. -31.28 kJ

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A cylinder/piston contains 100L of air at 25 C, 110 kPa. The air is compressed in a reversible polytropic process to a final state of 200 C, 800 kPa. Assume the heat transfer is with the ambient at 25 C. Find the work done by the air.

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