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

The refrigerant R-22 is contained in a piston/cylinder where the volum

1.	The refrigerant R-22 is contained in a piston/cylinder where the volume is 11 L when the piston hits the stops. The initial state is 30 C, 150 kPa with a volume of 10 L. This system is brought indoors and warms up to 15 C. Find the work done by the R-22 during this process.
A.	-0.15 kJ
B.	0.15 kJ
C.	-0.35 kJ
D.	0.35 kJ
Answer» C. -0.35 kJ

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

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