7-229 Air at 15°C is compressed steadily and isothermally from 100 kPa to 700 kPa at a rate of 0.12 kg/s. The minimum power input to the compressor is
a) 1.0 kW
b) 11.2 kW
c) 25.8 kW
d) 19.3 kW
e) 161 kW
 
 
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