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← ScienceWhich outcome occurs if a molten salt reactor experiences overheating?
A)Fuel salt density decreases sharply✓
B)Neutron moderation increases excessively
C)Delayed neutron fraction rapidly rises
D)Fission products become chemically inert
💡 Explanation
Fuel salt density decreases sharply occurs due to thermal expansion. Because the temperature increases excessively, thermal expansion reduces salt density therefore reactivity is diminished rather than enhanced neutron moderation, preventing immediate runaway criticality.
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