1. The problem statement, all variables and given/known data WHen an atom of U235 undergoes fission in a statement reactor about 200MeV energy is liberated. suppose that a reactor using U235 has an output of 700MW and 20% efficient: a) how many atoms does it consume in one day? b) what mass of uranium does it consume daily? 2. Relevant equations 3. The attempt at a solution No any idea for this question ?