Problem - Process representation on a T-s diagram for pure substances and entropy generation Steam expands steadily in a turbine at a rate of 40,000 kg/h from 8 MPa and 500C to a saturated vapor at 40 kPa. Please answer the following questions. a. Represent the process on a T-s diagram when the turbine operates under the given conditions in an adiabatic irreversible manner, and when it operates in an adiabatic reversible manner between the same pressures. P = 8 MPa T = = 500 C 40,000 kg/hr Steam Turbine P-40 kPa Sat Vapor b. Determine the rate of entropy generation in this turbine, in kW/K, when the turbine operates adiabatically but with irreversibility. c. The insulation in the turbine has degraded and the actual power of the turbine is 8.2 MW. Determine the rate of entropy generation associated with this process. The surroundings of the turbine are at 25C. 8 MPa 500C Steam turbine 40 kPa sat. vapor 8.2 MW