A steam power plant running on Rankine cycle has steam entering HP turbine at 20 MPa, 5000 C and leaving LP turbine at 90% dryness. Considering condenser pressure of 0.005 MPa and reheating occurring up to the temperature of 5000 C determine, (i) The pressure at which steam leaves HP turbine (ii) The thermal efficiency. (iii) Work done. (AP)(13)