0.70 kg/s of air enters with a specific enthalpy of 290 kJ and leaves it with 450 kJ of specific enthalpy. Velocities at inlet and exit are 6 m/s and 2 m/s respectively. Assuming adiabatic process. What is power input to the compressor?
(a) 120 kW (b) 118 kW
(c) 115 kW (d) 112 kW