Mpemba effect

January 25, 2024

Researchers have conducted experiments which show hot water freezes faster than cold water, as per a phenomenon known as Mpemba Effect.
It is named after Tanzanian student Erasto Mpemba, who brought attention to this counterintuitive phenomenon in 1969.
According to it, hot water evaporates more rapidly, reducing its mass and inducing a cooling effect.
- Possible causes include microbubbles, evaporation, the presence of frost in cold water, and the effect of compounds precipitated by boiling.
When heated, Hydrogen bonds in water break, causing water molecules to move apart and facilitating quicker freezing due to energy loss.