Question 1056859: A nuclear reactor generating plant supplies 15.0 MW of useful power steadily for a year. Assuming that, in addition, twice this power is wasted in heat production, determine the mass (in kilograms) converted to energy in a year at this plant.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! A nuclear reactor generating plant supplies 15.0 MW of useful power steadily for a year. Assuming that, in addition, twice this power is wasted in heat production, determine the mass (in kilograms) converted to energy in a year at this plant.
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--> a total of 45 MW for 1 year.
E = 45e6*365*24*3600 watt-seconds (Joules)
E = 1.41912e15 joules
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E = mc^2
m = 1.41912/(3e8)^2
m = 1.5768e-2 kg
m =~ 0.0158 kg
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