Does Hotter Water Freeze Faster?

Hot water freezes faster than cold, known as the Mpemba effect. ... Determining whether or not hot water can freeze faster than cold water may seem like a no-brainer. After all, water freezes at 0 degrees Celsius.

Does hot water really freeze faster?

Hot water can in fact freeze faster than cold water for a wide range of experimental conditions. This phenomenon is extremely counterintuitive, and surprising even to most scientists, but it is in fact real. ... The phenomenon that hot water may freeze faster than cold is often called the Mpemba effect.

Does hot water freeze faster than cold water Mythbusters?

If the water is initially hot, cooled water at the bottom is denser than the hot water at the top, so no convection will occur and the bottom part will start freezing while the top is still warm. This effect, combined with the evaporation effect, may make hot water freeze faster than cold water in some cases.