Air enters a compressor operating at a steady state at a mass flow rate of 1kg /s and is

compressed from 1 to 5 bar. Air enters the compressor at 300 K, and leaves at 500 K. Inlet velocity is 12

m/s and outlet velocity is 4 m/s. Inlet and outlet pipe cross sections are the same. The compressor is

not operating adiabatically and during this compression process, heat is removed from the compresses

at a rate of 10kJ/s.

Calculate the amount of shaft work per unit time required in this steady-flow compression process.

Express your result sin units of kJ/s. Assume that the Cp for air is 1 kJ/kgK