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← ScienceWhich risk increases when rapid heating initiates boiling?
A)Superheat vapor explosion occurs rapidly.✓
B)Nucleate boiling heat rate increases.
C)Film boiling transitions instantaneously always.
D)Critical heat decreases monotonically smoothly.
💡 Explanation
Rapid heating of a liquid causes superheating because homogenous nucleation requires overcoming an energy barrier; therefore, a superheat vapor explosion happens rather than immediate film boiling because bubble nucleation occurs under extreme conditions.
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