Question
(a) A nuclear power plant converts energy from nuclear fission into electricity with an efficiency of 35.0%. How much mass is destroyed in one year to produce a continuous 1000 MW of electric power? (b) Do you think it would be possible to observe this mass loss if the total mass of the fuel is $10^4 \textrm{ kg}$?
1. $1.00 \textrm{ kg}$
2. 0.01%. 1 kg is observable with careful measurement, but a very precise scale would be needed that has 6 digits of precision.
Solution Video