Why does fire need oxygen?

Answer 1

The oxygen that a fire needs is used to support the chemical reaction which takes place when something burns. The oxygen is used along with heat to convert the fuel, which typically is composed of hydrocarbons, to mostly carbon dioxide and water. Without the oxygen the fire would die out, because the chemical reaction couldn't take place without it. A fire needs three things in order to remain burning: fuel, an adequate supply of oxygen, and a sufficient heat source.

Oxygen does not itself burns but supports burning.If the burning substance does not get adequate amount of Oxygen the burning of a substance willl b reduced and fire wouldn't rise much.It will blowed off.

Answer 2

Fire requires oxygen because it is a key part of the chemical reaction that takes place during combustion. The oxygen reacts with the fuel source (such as wood or paper) and releases energy in the form of light and heat. Without oxygen, the chemical reaction cannot occur, and fire cannot be sustained.

Answer 3

Fire is a chemical reaction between oxygen and some flammable substance. For example, when you burn methane, the main component of natural gas the equation is:

CH4 + 2O2 --> CO2 + 2H2O

Answer 4

It is like Humans we need it to breath so it is like the same concept for them if you get me.

But it leads onto another question....

Why is the sun burning when there is no oxygen in space?

Answer 5

Yes. Fire needs three things to exist: Heat, Fuel and Oxygen (known collectively as the fire triangle).

Answer 6

oxygen is part of the burning reaction CxHy +zO2--> H20 +CO2 + CO + fire

Answer 7

All forms of burning are combining chemicals with oxygen.

Answer 8

The oxygen that a fire needs is used to support the chemical reaction which takes place when something burns.

Answer 9

topic