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← ScienceWhich outcome reduces kinetic energy of neutrons during nuclear fission?
A)Heavy water moderation✓
B)Isotopic enrichment increase
C)Fuel rod decomposition
D)Control rod malfunction
💡 Explanation
Slowing neutrons improves fission efficiency because moderation increases the probability of neutron capture by Uranium-235, stimulating more fission. Heavy water moderation slows neutrons by inelastic scattering, rather than allowing them to escape, therefore increasing reaction chain.
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