Argon gas flows steadily through a mixer nozzle device. At the first inlet, argon enters at 200 kPa, 5oC, 0.01 kg/s. At the second inlet, argon enters at 338oC, 200 kPa, 0.008 kg/s. At the exit, argon leaves at 94oC and 100 kPa. A stirrer transfers work into the device at a rate of 0.005 kW, the heat transfer rate leaving the device is 0.007 kW. Determine
(a) Velocity (V3) of argon at exit.
(b) The entropy generation rate (S⋅gen) during mixing.