A piston/cylinder of total 1kg steel contains 0.5 kg ammonia at 1600 kPa both masses at 120 C with minimum volume being 0.02 m3. The whole system is cooled down to 30 C by heat transfer to the ambient at 20 C, and during the process the steel keeps same temperature as the ammonia. Find the work.

A piston/cylinder of total 1kg steel contains 0.5 kg ammonia at 1600 k

1.	A piston/cylinder of total 1kg steel contains 0.5 kg ammonia at 1600 kPa both masses at 120 C with minimum volume being 0.02 m3. The whole system is cooled down to 30 C by heat transfer to the ambient at 20 C, and during the process the steel keeps same temperature as the ammonia. Find the work.
A.	28.14 kJ
B.	38.14 kJ
C.	48.14 kJ
D.	58.14 kJ
Answer» E.

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A piston/cylinder of total 1kg steel contains 0.5 kg ammonia at 1600 kPa both masses at 120 C with minimum volume being 0.02 m3. The whole system is cooled down to 30 C by heat transfer to the ambient at 20 C, and during the process the steel keeps same temperature as the ammonia. Find the work.

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