Hot Water Can Freeze Faster Than Cold Water, Known as the Mpemba Effect

This counterintuitive phenomenon, observed by Erasto Mpemba, suggests that under specific conditions, hot water can freeze before an identical volume of cold water. Scientists are still debating the exact mechanisms, with supercooling and convection being among the leading theories.

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https://en.wikipedia.org/wiki/Mpemba_effect

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Published: March 26, 2026
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Physics Weird Chemistry Freezing Science Mpemba Effect Water Thermodynamics Experiment

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