A steam power plant operates on a Rankine cycle between pressure limits of 0.08 bar and 80 bar. The heat added by combustion in the boiler is 3166 kJ/kg. Steam enters the condenser with a quality of 90% and exits as a saturated liquid. Determine the following: I) the pump work (kJ/kg), assuming an isentropic process II) the turbine work (kJ/kg) III) the isentropic turbine efficiency IV) the cycle thermal efficiency.