Calculate the energy released by the fission 1 g of (U235)in joule, given that the energy released per fission in 200 MeV.

Q: Calculate the energy released by the fission 1 g of (U235)in joule, given that the energy released per fission in 200 MeV. (Avogadro’s number = 6.023 × 1023)

Sol: The number of atoms in 1 g of U235

= (Avogadro’s number)/(Mass number)= (6.023 × 10^23)/235 = 2.563 × 1021

Energy released per fission = 200 MeV

= 200 × 106 × 1.6 × 10-19 = 3.2 × 10-11 J

Energy released by 1 g of U235

= Number of atoms × energy released per fission

= 2.563 × 1021 × 3.2 × 10-11 J

= 8.202 × 1010 J.