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 molecules.
Carbon Dioxide fire extinguisher works by displacing oxygen from the fire triangle. The carbon dioxide is also very cold as it comes out of the extinguisher, so it cools the fuel as well. CO2 extinguisher may be ineffective at extinguishing Class A fires because they may not be able to displace enough oxygen to successfully put the fire out. Where you should not use the …
Why Is Carbon Dioxide Used in Fire Extinguishers?
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). Advertisement.
People Also Ask does carbon dioxide extinguish fire
Why does CO2 put out a flame?
Set up the Magic TrickIn the glass, mix together a little baking soda and vinegar. You want roughly equal amounts of the chemicals, like 2 tablespoons each.Put your hand over the glass to keep the carbon dioxide from mixing too much with the outside air.You’re ready to blow out a candle. …
What do you need to know about CO2 fire extinguishers?
There are 8 main kinds of fire extinguishers:Water and Foam fire extinguishers operate by removing the necessary heat element from the fire triangle. …CO2 fire extinguishers remove both the oxygen element and the heat element from the fire triangle. …Dry Chemical fire extinguishers are the typical ABC extinguishers that most people are familiar with. …
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Why does carbon dioxide put out fire?
Why does carbon dioxide cause the splint to go out?Hydrogen. A lighted wooden splint makes a popping sound in a test tube of hydrogen.Oxygen. A glowing wooden splint relights in a test tube of oxygen.Carbon dioxide.Ammonia.Chlorine.
How do CO2 fire extinguishers work?
A Fuel – some sort of combustible solid, liquid or gasOxygen – to react with the fuelHeat – there must be enough heat to get the fuel above its flash point. There is paper on your desk right now that is surrounded by oxygen. …
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Extinguish Fire with Carbon Dioxide experiment Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher