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Carbon dioxide is very stable, and cannot contribute oxygen to support combustion of most flames. As carbon dioxide becomes more and more prevalent, it can displace oxygen, and so the fuel may be present, but the oxidizer is not. The fire is "smothered".
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoCarbon dioxide (CO2) covers the burning material so that oxygen is blocked out. Because the oxygen is needed for the material to burn, the fire will extinguish.
WARNING! Never try to extinguish burning metals, e.g. magnesium, with CO2! The reaction between the 2 compounds will just make it worse
Wiki User
∙ 12y agoThe O atoms in carbon dioxide are not free oxygen molecules: they are now (double) bonded to carbon (by a burning reaction of carbon coal with oxygen gas from air,
C + O2 --> CO2).
The extinguishing behaviour of CO2 from fire extinguishers has two reasonings:
- exclusion of free oxygen
- lowering temperature by spraying 'dry ice', below 0oC.
Wiki User
∙ 12y agoCarbon dioxide displaces the oxygen necessary for combustion to occur.
Wiki User
∙ 14y agoIt starves the fire of oxygen.
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What do you use carbon dioxide?
Well I use carbon dioxide in my fire extinguisher. What do you use carbon dioxide, or to put it another way? In what do you use carbon dioxide? Humans breathe out carbon dioxide... Breathing it out is not exactly using it. That would be more like making it.
Does fire need carbon dioxide to burn?
No. Fire need fuel, oxygen, and heat to burn. Carbon dioxide is a product of most fires and can actually be used to put fires out.
Does a fire give off carbon dioxide or carbon monoxide?
yes, fire gives off carbon dioxide and takes in oxygen Additional answer It does rather depend on what it is that's burning in the fire. A fire that's entirely hydrogen burning would not produce carbon dioxide. Where would the carbon come from? Likewise, magnesium burning would not produce any.
Disadvantages of fluorine?
Fluorine is extremely reactive. It will react with many substances at room temperature and can spontaneously set fire to organic material. It will react exothermically with substances normally used to extinguish fires such as water and carbon dioxide. When it reacts it can form toxic compounds such as hydrogen fluoride.
What gases displace oxygen?
CO2 can displace oxygen, because it is heavier than oxygen. Here is a link to nafed: "The mechanisms by which carbon dioxide extinguishes fire are rather well known. If we go back to the familiar fire triangle, we realize that an interaction between fuel, oxygen and heat is necessary to produce a fire condition. When these three elements are present in a proper relationship, fire will result. Carbon dioxide extinguishes fire by physically attacking all three points of the fire triangle. The primary attack is on the oxygen content of the atmosphere. The introduction of CO2 into the fire zone displaces sufficient oxygen in the atmosphere to extinguish the open burning. At the same time, the extinguishing process is aided by a reduction in the concentration of gasified fuel in the fire area. And finally, CO2 does provide some cooling in the fire zone to complete the extinguishing process.
Which gas is required to extinguish a fire?
carbon dioxide is used to extinguish fire
Why you use carbon dioxide in fire extinguish equipments?
Because carbon dioxide is not flammable and things cannot burn in it. So if it envelopes a fire, that fire will go out.
How do firefighters use carbon dioxide?
It's used to extinguish fires because carbon dioxide supersedes the oxygen. Without oxygen, no fire can burn.
How does carbon dioxide benefit life?
carbon dioxide help to extinguish fires..if something caught a fire,we would use a fire extinguisher which contains carbon dioxide and obviously we would keep oxygen away from the burning thing..
What gases will extinguish a burning splint?
carbon dioxide
What gas do firefighter use?
The extinguish certain types of fire they would use carbon dioxide (CO2)
Which gas can be used to fire extinguish?
Many gases can be used to extinguish fire, but carbon dioxide is used in many fire extinguishers, as an agent and nitrogen is used as a propellant. Sulphur hexafluoride is sometimes used to snuff high-voltage arcing when a power station fuse blows.
How does CO2 extinguish a fire?
A fire needs heat, fuel and oxygen to burn, remove one of the three and the fire goes out, carbon dioxide (Co2) smothers the fire and so starves it of oxygen.
What gas will put out flames?
Carbon Dioxide is a non-flammable gas that will extinguish flames.
How is carbon dioxide able to control a fire?
Carbon Dioxide [CO2] controls, and can extinguish, a fire due to the fact that the addition of CO2 to the air, results in reducing the relative percentage of Oxygen [O2] to a concentration below that necessary for combustion ["burning"] to occur.
What sort of fire is a carbon dioxide fire?
Carbon dioxide does not burn.
Which gas is used to extinguish fire?
The most common is C02 - Carbon Dioxide, it works by creating a cloud of C02 and thus starving the fire of Oxygen. Some systems use Halon Gas.
