Why Does Hot Water Freeze Faster Than Cold Water Explain
Camila Farah
Under extremely specific conditions.
In modern times this counterintuitive property has been named the mpemba effect after a tanzanian secondary school student who re discovered this phenomenon back in 1963. The main factors appear to be. There exists a set of initial parameters and a pair of temperatures such that given two bodies of water identical in these parameters and differing only in initial uniform temperatures the hot. As a result hot water cools faster because it is able to melt frost where cold water cannot.
There are records of this from as far back as aristotle s time. Hence the faster freezing. But observations over thousands of years as well as countless modern experiments have shown that the opposite is true under carefully controlled conditions hot water at times seems to freeze faster than cold water. But it turns out this demonstration is actually not that surprising hot water is in fact known to freeze faster than cold water.
The phenomenon when taken to mean hot water freezes faster than cold is difficult to reproduce or confirm because this statement is ill defined. With carefully chosen samples of water. New experiments provide support for a. It seems obvious that the answer should be no because all things being equal hot water takes longer to cool down than cold water and so it couldn t possible freeze faster.
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More hot water will evaporate than cold water thus reducing the amount of water remaining to be frozen. Monwhea jeng proposes as a more precise wording. Hot water really can freeze faster than cold water a new study finds. The physics of why hot water sometimes freezes faster than cold water for decades physicists have debated whether the phenomenon exists and how to study it.
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