The fission of 235U92 produces 2.5 x 10^10J/kg. The number of fission in 1 kg is (energy per fission = 200 MeV, 1 MeV = 1.6 x 10^13 J):
Correct answer: A. 7.81 x 10^23
- A. 7.81 x 10^23
- B. 1.56 x 10^24
- C. 2.34 x 10^24
- D. 3.12 x 10^24
Explanation
Energy per fission = 200 × 1.6 × 1013 = 3.2 × 1011 J. Number of fissions = total energy/energy per fission = 2.5 × 1010 / (3.2 × 1011) ≈ 7.81 × 10²³ .
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