In a steady-flow adiabatic compressor a mixture of 60% nitrogen and 40% hydrogen (by mass) is compressed from 120 kPa and 400 K to 130 kPa. The amount of work for this process is 100 kJ/kg. The mixture behaves as ideal gas. Calculate (a) the exit temperature of the mixture, and (b) the entropy change of the gas mixture. (30 points) Use constant specific heats at the correct inlet temperature.

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg. k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m. k