Why is carbon dioxide used to extinguish fire

According to How Stuff Works, fire extinguishers use carbon dioxide to displace the oxygen necessary for a fire to burn, extinguishing the blaze. Fires need oxygen, fuel, and heat to ignite, and removing any one of those three components can put out a fire. Carbon dioxide extinguishers work because carbon dioxide molecules are heavier than oxygen …

It displaces oxygen so that oxygen cannot come in contact with fire. Thus, carbon dioxide gas stops the supply of oxygen thereby removing oxygen from the fire triangle. In fire extinguishers, carbon dioxide gas is stored under very high pressure. When carbon dioxide gas comes out of fire extinguishers, it is very cold. So it cools the fuel. To extinguish fire, carbon dioxide gas …

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Why Is Carbon Dioxide Used in Fire Extinguishers? | eHow

Among its many uses, CO2 has the ability to put out flames and is therefore used as the extinguishing agent in both portable and fixed-installation fire extinguishers. An examination of its properties and uses shows why it’s a popular choice for suppression of most, but not all, types of fire.

As Fire needs oxygen to burn, Carbon Dioxide Covers the fire like an blanket and cuts the contact of fire to the oxygen present in the air, So Fire stops burning. That is why Carbon Dioxide is Considere as the best Fire Extinguisher.

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Why is carbon dioxide used in fire extinguishers?

Why Is Carbon Dioxide Used in Fire Extinguishers? Why Is Carbon Dioxide Used in Fire Extinguishers? According to How Stuff Works, fire extinguishers use carbon dioxide to displace the oxygen necessary for a fire to burn, extinguishing the blaze.

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Why are fire extinguishers not suitable for chemical fires?

These extinguishers are not suitable for chemical or electrical fires since the liquid can conduct electricity and cause flammable agents to spread. Other extinguishers coat the fuel, forming a barrier between the flammable material and the oxygen in the surrounding air.

Can you use CO2 to put out a fire?

CO2 is effective on liquid fires, gaseous fires and electrical fires (American classes B and C and International classes B, C and E). The gas is particularly useful for electrical fires as it’s non-conductive and leaves no trace after its use (as would be the case for foams or other gases).

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How does a fire extinguisher work?

According to How Stuff Works, fire extinguishers use carbon dioxide to displace the oxygen necessary for a fire to burn, extinguishing the blaze.

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why Carbon dioxide is used in fire extinguisher? Video Answer


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

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