The Leidenfrost Effect

The Leidenfrost Effect occurs when a liquid comes into contact with a surface much hotter than its boiling point. A thin layer of vapor forms between the liquid and the surface, creating a cushion that prevents the liquid from rapidly boiling away. This causes the droplet to levitate and glide smoothly across the surface, often lasting longer than expected. For example, when a drop of water hits a very hot pan, it skitters around rather than evaporating instantly. This phenomenon demonstrates how rapid vaporization creates a temporary barrier, affecting heat transfer and liquid behavior at high temperatures.