A piston-cylinder contains carbon dioxide at 2MPa with V=50 L. The device has a mass of 4 kg. Everything is initially at 200 C. By heat transfer the whole system cools to 25 C, at which point the gas pressure is 1.5 MPa. Find the work done.

A piston-cylinder contains carbon dioxide at 2MPa with V=50 L. The dev

1.	A piston-cylinder contains carbon dioxide at 2MPa with V=50 L. The device has a mass of 4 kg. Everything is initially at 200 C. By heat transfer the whole system cools to 25 C, at which point the gas pressure is 1.5 MPa. Find the work done.
A.	-10.0 kJ
B.	-12.0 kJ
C.	-14.0 kJ
D.	-16.0 kJ
Answer» D. -16.0 kJ

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A piston-cylinder contains carbon dioxide at 2MPa with V=50 L. The device has a mass of 4 kg. Everything is initially at 200 C. By heat transfer the whole system cools to 25 C, at which point the gas pressure is 1.5 MPa. Find the work done.

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