endothermic Archive

Why does hot water freeze more quickly than cold water?

You might have tried to freeze water in your fridge. But have you ever noticed that hot water freezes faster than cold water? If not, try it yourself. This phenomenon where hot water freezes faster than cold water is called Mpemba effect. The Mpemba effect has been a well known physicist since the time of Aristotle who noticed it more than 2,000 years ago. There were many ideas since then to have been put forward to explain the same. One idea is that warm containers make better thermal contact with a refrigerator and so conducts heat more efficiently, which leads