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← ScienceWhich outcome occurs when fuel enrichment increases reactor criticality?
A)Increased neutron flux and power✓
B)Moderator temperature nears boiling point
C)Reduced breeding of plutonium isotopes
D)Coolant pH shifts towards acidity
💡 Explanation
Increased fuel enrichment leads to a greater concentration of fissile isotopes, causing an increase in the rate of nuclear chain reactions via neutron multiplication. Therefore, fission rate and neutron flux increases, rather than decreased plutonium breeding that would occur with other fuel mixtures.
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