(Solved): 7.51 Figure P7.51 and the accompanying table provide a schematic and steady-state operating data fo ...

7.51 Figure P7.51 and the accompanying table provide a schematic and steady-state operating data for a mixer that combines two streams of air. The stream entering at \( 1500 \mathrm{~K} \) has a mass flow rate of \( 2 \mathrm{~kg} / \mathrm{s} \). Stray heat transfer and the effects of motion and gravity are negligible. Assuming the ideal gas model for the air, determine the rate of exergy destruction, in \( \mathrm{kW} \). Let \( T_{0}=300 \mathrm{~K}, p_{0}=1 \mathrm{bar} \). \( \mathrm{a}_{s}{ }^{0} \) is the variable appearing in Eq. \( 6.20 \mathrm{a} \) and Table A-22.