Key1431
20.09.2020 •
Engineering
Air, which may be considered as a mixture of 79 percent N2, and 21 percent O2 by mole numbers, is compressed isothermally at 200 K from 4 to 8 MPa in a steady-flow device. The compression process is internally reversible, and the mass flow rate of air is 2.9 kg/s. Determine the power input to the compressor and the rate of heat rejection by treating the mixture:
a. as an ideal gas
b. as a nonideal gasand using Amagat's law.
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