Solve the below problem:
Q: A co-generating steam power plant operates with a boiler output of 25 kg/s steam at 7 MPa, 500?C. The condenser operates at 7.5 kPa and the process heat is extracted as 5 kg/s from the turbine at 500 kPa, state 6 and after use is returned as saturated liquid at 100 kPa, state 8. Assume all components are ideal and find the temperature after pump 1, the total turbine output and the total process heat transfer.