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Question: When <sub>92</sub>U<sup>235</sup> undergoes fission, 0.1% of its original mass is changed into energ...

When 92U235 undergoes fission, 0.1% of its original mass is changed into energy. How much energy is released if 1 kg of 92U235 undergoes fission?

A

9 × 1013 J

B

9 × 1012 J

C

9 × 1011 J

D

9 × 1010 J

Answer

9 × 1013 J

Explanation

Solution

E = mc2 ⇒ E = (0.1100×1)\left( \frac { 0.1 } { 100 } \times 1 \right) × (3 × 108)2 joule