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Is there a way to turn hot water instantly to cold water? Is there some sort of chemical reaction or element that allows this process to happen?

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closed as unclear what you're asking by Mithoron, Tyberius, a-cyclohexane-molecule, Jon Custer, A.K. Nov 26 '18 at 17:43

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  • $\begingroup$ Instantly? No!! $\endgroup$ – Waylander Nov 25 '18 at 15:55
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    $\begingroup$ Liquid nitrogen would cool it off pretty fast, though not instantly. This technique is used to make "instant" ice cream. $\endgroup$ – iad22agp Nov 25 '18 at 16:10
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    $\begingroup$ Makes a pretty good explosion too! $\endgroup$ – Waylander Nov 25 '18 at 16:38
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If you put a strongly endothermic reaction in a water bath, or put something extremely cool near or through it (dry ice, liquid nitrogen, etc. like @iad22agp said), then it would cool down.

One thing to note is that water has an extremely high heat capacity compared to most substances, so it takes a considerable amount of energy to turn "hot" water to "cold" water.

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