1.

R-22 is contained in a piston-cylinder, where the volume is 11 L when the piston hits the stops. The initial state is 150 kPa, −30°C with V=10 L. This system warms up to 15°C. Find the work done by R-22 during this process.

A. 0.35 kJ
B. 0.25 kJ
C. 0.15 kJ
D. 0.05 kJ
Answer» D. 0.05 kJ


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