- #1

eminem4002

- 14

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- Homework Statement
- An average efficiency of a nuclear power plant is 35%. How much mass of uranium-235 is required to produce 2.49 PWh of electric energy?

- Relevant Equations
- Uranium-235 + neutron -> Krypton-92 + Barium-141 + 3 neutrons.

I've calculated that reaction-energy in fission of a single atom of Uranium-235 is 2.5977713481*10^-11 Joules (based off of the equation given above.) I'm assuming that PWh has to be converted into simpler units so, 2.49PWh = 2.49*10^15Wh.. afterwards I could make it into watts but I was never given a specific time period in which the uranium has to produce 2.49 PWh of electricity. Am I overthinking this, maybe I completely missed the point of the task?