Traditional Culture Encyclopedia - Weather forecast - The coal in Helan Mountain has been burning, why can't it be put out directly with water?
The coal in Helan Mountain has been burning, why can't it be put out directly with water?
This involves some chemical reactions. It is because this coal will react chemically with water to generate hydrogen and carbon monoxide, and then make it burn more violently. So it can't be put out with water, because water can't put it out at this time, but it will become an accelerant to make it burn bigger and bigger. This also shows that not all fires can be doused with water. Therefore, when we see some fires in the future, we still need to find out what the fire is, otherwise it is likely to backfire and cause incalculable casualties.
In other words, a coal mine in Helan Mountain also caused violent combustion for certain reasons. Some people will definitely feel strange, why is it so good? Or is it that someone deliberately set fire to cause disaster? In fact, it was because the weather itself was dry and the temperature was high at that time. During the long-term exposure of the sun, the temperature rises slowly bit by bit, and finally it reaches the point where this coal mine can be natural. I don't know that coal combustion is an oxidation reaction. Once some coal is ignited, it will release more heat itself, thus causing a vicious circle. As a result, the situation of coal burning became more and more fierce, and it directly became a flaming mountain.
when some people see a fire, they will certainly rush to their homes to get a bucket of water to douse it, but unexpectedly, coal will react with water at high temperature. The generated hydrogen and carbon monoxide are flammable gases, and once these gases are burned, they will also release a lot of heat, thus making them burn more vigorously.
Is it necessary to watch so much coal burn out without doing anything? In fact, there is no need to worry too much. We just need to figure out what the conditions for burning are. There must be two conditions for the head to burn first. The first is that the object itself reaches its flammable point, and then it must be carried out with sufficient oxygen. Most of these combustion reactions are oxidation reactions. Sun Tzu needs to isolate this burning object from oxygen, and his work will naturally be destroyed. If we usually use water to pour the fire. The use is to lower the temperature of the object itself, and then water can isolate the object from contact with oxygen.
But if water doesn't work, you must use other methods, and burying it with mud and sand can also put out the fire. At the same time, carbon dioxide is an inert gas, not nonflammable. It is used to isolate oxygen to achieve the effect of fire extinguishing. In some of our fire extinguishers, carbon dioxide is produced by chemical reaction to extinguish the fire.
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