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← ScienceWhich consequence results when enriched uranium-235 moderation fails?
A)Reduced neutron flux output
B)Increased probability of fuel melting✓
C)Buildup of useful xenon-135
D)Neutron cross-section minimization
💡 Explanation
When moderation fails, the Uranium-235 fissions less efficiently because neutron capture decreases. Therefore, more energy concentrates locally within the fuel rods via uncontrolled chain reaction, causing probability of fuel meltdown rather than controlled fission.
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