Steam is used a Rankine power plant, where the turbine operates between 3,300 kPa and 50 kPa. The turbines inlet steam is at 500C. The turbines efficiency is 70%.

a) Determine the cycles thermal efficiency.

b) Determine the turbines inlet steam temperature (instead of 500C) that would result in a turbine outlet that is saturated vapor. Also determine the cycles thermal efficiency for this case.