Each second, a nuclear power plant generates 2000 MJ of thermal energy from nuclear reactions in the reactors core. This energy is used to boil water and produce high pressure steam at 573 Kelvins, the steam spins a turbine, which produces 700 MJ of electric power, then the steam is condensed and water is cooled to 303 kelvins before starting cycle again.
a) maximum possible efficiency of plant?
b) plant's actual efficiancy?
emax= 1 - (Tc/Th)
e= what you get/ what you pay
The Attempt at a Solution
a)emax= 1- (303/573) = 0.53
b) e= work out/Qh = Qh-Qc/Qh = 1300/2000 = 0.65
but this is larger then my max!