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1. |
Air is drawn in a compressor at the rate of 0.8 kg/s at a pressure of 1 bar and temperature of 20 °C, and is delivered at a pressure of 10 bar and temperature of 90 °C. This air delivery is through an exit valve of area 2 × 10–3 m2. If R is 287 J/kg-K, the exit velocity of the air is |
A. | 41.7 m/s |
B. | 35.8 m/s |
C. | 29.7 m/s |
D. | 27.3 m/s |
Answer» B. 35.8 m/s | |