solve and explain each step and theory behind each step

2. The steam turbine shown in the figure below receives water with a mass flow rate of 100 kg/s and an enthalpy of 3582.3 kJ/kg. In the middle part of the turbine, water comes out with a flow rate of 20 kg/s and an enthalpy of 3136/96 kJ/kg without speed. The rest leaves the turbine at 75 kPa and with a quality of 95. Ignoring changes in kinetic energy and heat transfer, calculate the total turbine work (kW). (at P= 75kPa: hj= 385 kJ/kg, h,= 2663.4 kJ/kg)