Question: 3 . ( 2 0 pts ) Air is compressed from 1 0 0 kPa and 2 2 oC to a pressure of 9 0

3.(20 pts) Air is compressed from 100kPa and 22oC to a pressure of 900kPa at a steady
rate of 0.5kg/s. The compressor loses 5kW of thermal energy to the atmosphere as it
operates. The compressor has an isentropic efficiency of 85%.
a. Determine the exit temperature of the air.
b. Determine the power input to the compressor.

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