When water drops accidentally fall into hot oil, they will crack and splash everywhere. What happened?

When water drops accidentally fall into hot oil, they will crack and splash everywhere. What happened? 1. When the density of water is higher than some density, water drops will sink when they become oil. The boiling point of water is much lower than some boiling points. After contact with hot oil, water quickly reaches the boiling point and boils, and its volume expands rapidly. Surrounded by hot oil, the surrounding hot oil will be strongly pushed away, causing oil droplets to splash, and the air near the oil surface will vibrate violently and make a crackling sound. Put the red-hot iron into cold water, and the cold water will quickly vaporize into steam after absorbing heat; When water vapor rises, it is released when it is cold and liquefied to form small water droplets suspended in the air, which is called "white vapor".

2. Cold water splashes into the hot oil pan. The density of cold water is greater than that of oil, so it will sink to the bottom of the pan quickly. Because the temperature of oil is very high, the boiling point of oil is higher than that of water. When cold water splashes into a hot oil pan, the temperature of water will quickly rise to the boiling point and boil, and the water at the bottom of the pan will vaporize violently, producing a lot of water vapor to rush out and bring out the oil with a beep. Cold oil drips into hot water, because the density of oil is lower than that of water, the oil dripped into hot water will float on the water surface, and the boiling point of oil is higher than that of water, so the oil on the water surface will not boil or splash.

3. The water droplets wrapped in steam burst. Because water vapor is lighter than oil and water droplets are heavier than oil, water vapor bubbles begin to float under oil after the evaporation process of water is completed. Once it reaches the oil level, the pressure difference inside and outside the bubble will cause the bubble to rupture and leak oil. Because the boiling point of water is 100 degrees Celsius, and the boiling point of oil is between 350 and 450 degrees Celsius, the density of water is not high, so water can only be under the oil in the oil pan, and a small amount of water will evaporate instantly after high temperature, and its volume will increase by dozens of times, so it will explode (hiss).

This is the same reason that old oxygen suddenly explodes at a long temperature. When this water drop is very large, such as introducing a large amount of water, the hot oil will not have enough heat to vaporize so much water instantly, so it will not explode. If the evaporation is slow, it will be much milder, so it will not be enough to fry the surrounding oil, and there will be no oil spilled! So, it comes down to the amount of water, whether hot oil can evaporate water droplets instantly!