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← ScienceWhich outcome is likely, immediately after sustained nuclear fission within a reactor is halted?
A)Decay heat induces coolant boiling✓
B)Xenon-135 absorption sharply falls
C)Neutron flux rapidly escalates anew
D)Fuel elements undergo lattice contraction
💡 Explanation
Decay heat will induce coolant boiling, because energy from fission product decay continues even with neutron moderation stopped with control rods, therefore continued heat rather than reactivity or contraction occurs after chain maintenance ends.
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