# Determine the work done.?

A reciprocating compressor draws 300 kg per min of air at 150 kPa and a specific volume of 0.040 m^3/kg. The air flows steadily through the compressor and is discharged at 700 kPa and 0.006 m^3/kg. The initial internal energy of the air is 1750 J/kg; at discharge, the internal energy is 6000 J/kg. The cooling water circulated around the cylinder carries away 4400 J/kg of air. The change in kinetic energy is 920 J/kg. Determine the work done. *

I can't figure out the solution.

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