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← ScienceWhich outcome results when the moderator density decreases within a nuclear reactor?
A)Reduced neutron moderation and power✓
B)Increased probability of fuel melting
C)Fuel enrichment becomes thermodynamically favorable
D)Increased coolant boiling caused chain-reaction increase
💡 Explanation
Reduced moderator density decreases neutron moderation, because fewer neutrons reach thermal energies necessary for sustained chain reactions, so the reactor power decreases. Therefore the power output decreases rather than accelerates, and without sufficient energy it fails.
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