Question
The electrical power output of a large nuclear reactor facility is 900 MW. It has a 35.0% efficiency in converting nuclear power to electrical. (a) What is the thermal nuclear power output in megawatts? (b) How many ${}^{235}\textrm{U}$ nuclei fission each second, assuming the average fission produces 200 MeV? (c) What mass of ${}^{235}\textrm{U}$ is fissioned in one year of full-power operation?
1. $2570 \textrm{ MW}$
2. $8.03 \times 10^{19} \textrm{ fissions / s}$
3. $989 \textrm{ kg / y}$
Solution Video