the air at 500 kPa and 400 K enters an adiabatic nozzle at a velocity of 30 m/s and leaves at 300 kPa and 350 K.
Determine
(a) The isentropic efficiency
(b) The exit velocity
(c) The entropy generation
1) a) 0.25 b) 30 m/s c) 0.2 kJ/kg⋅K
2) a) 0.5 b) 19 m/s c) 12 kJ/kg⋅K
3) a) 0.319 b) 0.925 m/s c) 0.012kJ/kg⋅K
4) a) 0.925 b) 319 m/s c) 0.012 kJ/kg⋅K
(Choose the correct one)