Why Does Hot Water Freeze Faster Than Cold Water Reddit
Camila Farah
The hot water beaker loses more water molecules through evaporation so there s less of it to freeze.
Fascinating as all this no doubt is all it basically proves is that very hot water freezes more slowly than very very hot water. So at the same rate of heat removal a sample of cold water will freeze sooner than the same size sample. Finally there s the idea that warm water might cool faster due to increased convection currents. Why does hot water freeze faster than cold water.
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. Monwhea jeng proposes as a more precise wording. So maybe warm water experiences less supercooling than cold water. Especially if it echoes some of the comments that have been.
I m expecting a deluge of comments. The phenomenon when taken to mean hot water freezes faster than cold is difficult to reproduce or confirm because this statement is ill defined. The ordinary fumbler in the fridge on the other hand is dealing with temps more like the ones i was measuring in which case cold freezes faster than hot. Using hot water to resurface an ice rink is beneficial because it partially melts the frozen layer below and forms a more integrated bond.
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While various theories have been proposed as to why this effect occurs a te hot water seems to freeze faster than cold water known as the mpemba effect. 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. 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.
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