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2 . Ammonia at 2 1 deg C and 2 0 0 kPa is compressed to 1 0 0 0 kPa in two stages

2 .

Ammonia at

21 \

deg C and

200

kPa is compressed to

1000

kPa in two stages in a compressor with an efficiency of

82 % .

Determine the required work and the temperatures at the I and II stage outlets.

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