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Question
In a nuclear reactor, state the use of cadmium rods.
Solution
Cadmium rods, used to control the fission rate, absorb the additional neutrons.
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\[\ce{^2_1H + ^2_1H -> ^4_2He + energy}\]
Mass of \[\ce{^2_1H = 2.014102 u}\]
Mass of \[\ce{^4_2He = 4.002604 u}\]
Find the energy released during the following fission reaction.
\[\ce{_92^235U + _0^1n-> _92^236U->_36^90Kr + _56^143Ba + 3 _0^1n}\]
| Mass(u) | |
| 235U | 235.0439 |
| 90Kr | 89.9195 |
| 143Ba | 142.9206 |
| 1n | 1.0087 |
