Question

The energy released in the fission of $1 \,kg$ of $_{92}{{U}^{235}}$ is (energy per fission = 200 MeV)

• A. $5.1\times {{10}^{26}}eV$
• B. $5.1\times {{10}^{26}}J$
• C. $8.2\times {{10}^{13}}J$
• D. $8.2\times {{10}^{13}}MeV$

Answer 1

Answer: (C)

$8.2\times {{10}^{13}}J$

Answer 2

Energy released from 1 kg of uranium $=\frac{200\times {{10}^{6}}\times 1.6\times {{10}^{-19}}\times 6.023\times {{10}^{26}}}{235}$ $=8.2\times {{10}^{13}}J$