Two streams of air are mixed in a steady-state process shown below. Assume air is an ideal

Question:

Two streams of air are mixed in a steady-state process shown below. Assume air is an ideal gas with a constant heat capacity C_P = 7R / 2.

(a) What is the temperature of the stream leaving the tank?

(b) What is the rate of entropy generation within the tank?

(c) If we duplicated the stream conditions (temperatures, pressures, and flowrates) with an internally reversible process, what is the maximum rate at which work could be obtained? If desirable, you are permitted to transfer heat to the surroundings at the surroundings’ temperature of 295 K. Stream A 0.167 mol/s 250 K 1 bar Stream B 0.833 mol/s 310 K 1 bar Stream C 1 bar