A piston-cylinder assembly has 1kg of R-134a at state 1 with 600 kPa, 110¬¨¬®‚Äö√†√ªC, and is then brought to saturated vapour, state 2, by cooling. The cooling continues to state 3 where the R-134a is saturated liquid. Find the work in each of the two steps, 1 to 2 and 2 to 3.$

A piston-cylinder assembly has 1kg of R-134a at state 1 with 600 kPa,

1.	A piston-cylinder assembly has 1kg of R-134a at state 1 with 600 kPa, 110¬¨¬®‚Äö√†√ªC, and is then brought to saturated vapour, state 2, by cooling. The cooling continues to state 3 where the R-134a is saturated liquid. Find the work in each of the two steps, 1 to 2 and 2 to 3.$
A.	0, -20.22 kJ
B.	-20.22 kJ,0
C.	0, 0
D.	-20.22 kJ, -20.22 kJ
Answer» B. -20.22 kJ,0

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A piston-cylinder assembly has 1kg of R-134a at state 1 with 600 kPa, 110¬¨¬®‚Äö√†√ªC, and is then brought to saturated vapour, state 2, by cooling. The cooling continues to state 3 where the R-134a is saturated liquid. Find the work in each of the two steps, 1 to 2 and 2 to 3.$

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