2) (10 points) A nuclear power plant generates 3000 MW of heat power (3,000,000,000 J/s) from nuclear reactions in the core. This energy is used to boil water and produce high-pressure steam at 300 degrees C. The steam spins a turbine, which produces 1000 MW of electric power, then the steam is condensed and the water is cooled to 25 degrees C before starting the cycle again. a) What is the maximum possible thermal efficiency of the power plant? b) What is the plant's actual efficiency? c) Cooling water from a river flows through the condenser (the low temperature heat exchanger) at a rate of 1.2X 10 L/hr (about 30 million gallons per hour). If the river water enters the condenser at 18 degrees C, what is its exit temperature