Numeric 9- Air at 500 kPa and 400 K enters an adiabatic nozzle at a velocity of 30 m/s and leaves at 300kPa and 350 K. Using variable specific heats, determine (a) the isentropic efficiency, (b) the exit velocity,and (c) and the entropy generation. Insert the entropy generation, in J/kg.K.

Fig: 1