Consider a Rankine cycle with one reheat cycle. Steam enters the high-pressure turbine at 10.0 MPa and 600°C, and leaves at 4 MPa. It is then reheated at constant pressure and enters the low-pressure turbine at 500°C. The condenser pressure is 15 kPa, and water leaves it at saturated liquid. The isentropic efficiencies of the turbine and pump are 0.85 and 0.9 respectively. Determine the thermal efficiency of this Rankine cycle