Why can water stop firing?

The problem is simple, but not everyone has the correct answer to this question. Here is the explanation of physicist Ia. I. Perenman.

First , if a country meets a burning object, it turns into this vapor and steam takes away a lot of the heat of the burning object. The heat needed to turn boiling water into steam is 5 times the heat needed to heat the same volume of cold water to 100 degrees.

Second , the steam formed at that time took up a volume several hundred times the volume of the water that produced it. This steam block surrounds the burning object, not exposing it to air. Without air, the fire will not be able to maintain.

In order to enhance the ability of fire suppression of water, sometimes people also add . gunpowder to water. This may seem strange at first, but it makes sense: the gunpowder burns very quickly and produces a lot of unburnt gases. These gases surround the object, making it difficult to burn.