7-226 Air is compressed steadily and adiabatically from 17°C and 90 kPa to 200°C and 400 kPa. Assuming constant specific heats for air at room temperature, the isentropic efficiency of the compressor is a) 0.76 b) 0.94 c) 0.86 d) 0.84 e) 1.00 | |
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