The water molecule doesn’t become hot enough to separate into hydrogen and oxygen and instead, has two potential actions on the fire that can put it out. Firstly, it absorbs the heat from the fire. This is the main method by which water extinguishes fire. Room temperature water is about 77 degrees Fahrenheit and water won’t become steam until it hits 212 degrees …
Why does water put out fire – explained in detail. Actually, water absorbs heat, due to its evaporation property, at a 540 calories/gram rate. Water, actually, evaporates 7 times faster than it boils. So, that’s what happens. You …
Why do we use water to extinguish fire in homes instead …
Therefore to put out a fire you have to remove one of the three sides of the triangle fuel, air (oxygen) or heat and the fire stops. Water is fantastic for taking away the heat because it has what is known as a high heat capacity which means you can put water into a situation and it absorbs the heat and reduces the temperature to the point where the fire goes out.
Water does not, in general, help extinguish a fire. Typical fires, however, can be successfully attacked using water alone, as it can cool the fuel at the base of the fire or generate a vapor barrier between atmospheric oxygen and the hot fuel. Water can accelerate liquid hydrocarbon fires by dispersing fuel.
People Also Ask why we use water to extinguish fire
Why do we use water as a fire extinguisher?
Some chemical agents, when burned and introduced to vapor might become airborne in forms of aerosol, while these usually do not burn as such, they can be hazardous on their own as toxins etc. So to sum it up – the prime usage of water as a fire extinguisher is due to their ability to "inflate & separate" more than any other property they have.
How do you extinguish a fire with water?
There are other/ preferable methods of fire-fighting and extinguishing, that are used today, Helon gas, extinguishing foams etc. each is targeting a different (sometimes even 2) aspect of the fire-triangle. Show activity on this post. Water does not, in general, help extinguish a fire.
How effective is water at putting out fires?
Anyways, using water is not always the most effective method to put out fires. In cases of fires that are sustained by liquid fuel, the force of water can disperse the fuel in the air and it doesn’t cool the fire.
Why does water put out a fire?
When water extinguishes a fire, it does so because it doesn’t break down into its constituent elements. The water molecule doesn’t become hot enough to separate into hydrogen and oxygen and instead, has two potential actions on the fire that can put it out.
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Why You Definitely Don't Want To Use Water To Extinguish a Grease Fire Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher