Atoms and Nuclei Problems - Numerical 11

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11.

If 200 MeV energy is released in the fission of a sample nucleus of ₉₂U²³⁵, how many fissions must occur per second to produce a power of 1 kW?

Suggested solution:

= 200 Mev

= 200 x 1.6 x 10^-13 J

= 3.2 x 10^-11 J

1kW = 1000 W = 1000 Js^-1

If x be the number of fissions per second required to generate a power of 1kW, then