Why water is used to extinguish fire

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 …

Water can be used to put out class A type fires – like wood fires and paper fires. Water helps bring down the temperature of the fire when it comes in contact and thereby puts off the fire. Also, water is readily available in abundance in most places.

Why does water extinguish fire? – tec-science

The very large heat of vaporization of water is the reason why water is particularly suitable for extinguishing a fire. When water is poured onto the fire site, the water is not only heated, but also vaporized. As explained, the water requires a great deal of heat specifically for vaporization. This energy is supplied by the fire site.

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Extinguishing a room on fire. Water can be used to extinguish fire or cool hot fire gases en route to the fire. Although the objective in both cases is to absorb energy, the application technique …

People Also Ask why water is used to extinguish fire

Why is water not used to extinguish a fire?

It does not work so well with liquid fuel fires because the water can spread the burning fuel, especially if you don’t add enough, by explosively evaporating in the intense heat, blowing droplets of burning fuel quite a distance. That’s why you don’t use water to try to extinguish an oil fire but it will

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Why is water used to put out fires?

Most fires are put out by water. Water cools the object and prevents ignition temperature. Water is used to quench class A fires ( natural/ cellulose materials). Water cools down the burning surface thereby reduces the flammable vapour generation.

Why does hydrogen act as a fire extinguisher?

When you burn paper you get ashes; but when you’re burning hydrogen atoms, you get water. Since it has has already released energy during its formation it requires energy to again dissociate which it absorbs in form of heat from fire and hence acts as fire extinguisher.

Which gas is used to extinguish the fire?

The inert gases such as argon, nitrogen are also used to extinguish the fire and their effect is achieved through the displacement of atmospheric oxygen.

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Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher

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