Hot water freezes faster than cold?

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The discussion centers on the Mpemba effect, which states that hot water can freeze faster than cold water under certain conditions. Participants express skepticism about the applicability of this phenomenon in closed containers, suggesting that evaporation plays a significant role in the observed effects. The conversation references a specific article from IFLScience and a physics explanation from John Baez, highlighting the need for clarity on the mechanisms involved. The consensus leans towards the idea that environmental factors, rather than intrinsic properties of the water, influence freezing rates.

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Einstein Mcfly
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http://www.iflscience.com/chemistry/hot-water-freezes-faster-cold-and-now-we-know-why

I thought that this had never been shown to happen with closed containers. I always thought that this was an issue of open containers allowing for evaporation and hence a smaller amount of frozen water, and that if lids were put on then the cold froze faster.

Does anyone have any thoughts on the vague explanation proposed in this link?
 
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