An air compressor compresses atmospheric air at 0.1 MPa and 27°C by 10 times of air inlet pressure. During compression, the heat lost to the surrounding is estimated to be 5% of compression work. Air enters the compressor with a velocity of 40 m/s and leaves with 100 m/s. The inlet and exit cross-sectional areas are 100 cm2 and 20 cm2 respectively. The temperature of air at the exit from the compressor will be

An air compressor compresses atmospheric air at 0.1 MPa and 27°C by 1

1.	An air compressor compresses atmospheric air at 0.1 MPa and 27°C by 10 times of air inlet pressure. During compression, the heat lost to the surrounding is estimated to be 5% of compression work. Air enters the compressor with a velocity of 40 m/s and leaves with 100 m/s. The inlet and exit cross-sectional areas are 100 cm2 and 20 cm2 respectively. The temperature of air at the exit from the compressor will be
A.	1498 K
B.	1574 K
C.	1654 K
D.	1726 K
Answer» B. 1574 K

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An air compressor compresses atmospheric air at 0.1 MPa and 27°C by 10 times of air inlet pressure. During compression, the heat lost to the surrounding is estimated to be 5% of compression work. Air enters the compressor with a velocity of 40 m/s and leaves with 100 m/s. The inlet and exit cross-sectional areas are 100 cm2 and 20 cm2 respectively. The temperature of air at the exit from the compressor will be
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