If a Nuclear Fission Reactor Produces an Average Power of 1.0

Multiple Choice

If a nuclear fission reactor produces an average power of 1.0 GW over the course of a year,what mass of ²³⁵U is used up for a 365-day year if 200 MeV are released per fission reaction? (1 eV = 1.60 × 10^-19 J,m_neutron ≈ m_proton = 1.67 × 10-27 kg)

A) 0.35 kg
B) 1.75 kg
C) 390 kg
D) 1.1 × 10⁸ kg
E) 3.3 × 10⁸ kg