Cooling of a Nonideal Gas Mixture

Cooling of a Nonideal Gas Mixture

Air is a mixture of N2, O2, and small amounts of other gases, and it can be approximated as 79 percent N2 and 21 percent O2 on mole basis. During a steady-flow process, air is cooled from 220 to 160 K at a constant pressure of 10 MPa (Fig. 13–17). Determine the heat transfer during this process per kmol of air, using (a) the ideal-gas approximation, (b) Kay’s rule, and (c) Amagat’s law.


FIGURE 13–17

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