1.

A constant pressure piston-cylinder contains 0.2 kg water as saturated vapour at 400 kPa. It is now cooled so that the water occupies half the original volume. Find the heat transfer in the process.

A. –203.9 kJ
B. –233.9 kJ
C. –223.9 kJ
D. –213.9 kJ
Answer» E.


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