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Question
(a) How many ${}^{239}\textrm{Pu}$ nuclei must fission to produce a 20.0-kT yield, assuming 200 MeV per fission? (b) What is the mass of this much ${}^{239}\textrm{Pu}$?
1. $2.62\times 10^{24}\textrm{ nuclei}$
2. $1.04\textrm{ kg}$
Solution Video