Fire needs oxygen. The color of the fire flame depends on the oxygen condition. But oxygen is the same everywhere. And why is there a difference in the colors of lamp light and gas fire? Have you ever thought that? Now let us know the reasons for the difference in these colors.
Jun 17, 2023 | 10:05 PM
It must be said that many houses without a gas stove are rare these days. People cook on gas stoves in their homes. However, after lighting the gas, its flame is blue. Same kerosene stove, oven, heater flames are yellow in color. And why does it come? Why are these colors different?
A fire is an exothermic reaction. Exo means release, thermic means heat. That is.. the heat generating process is released in the form of fire. This is done through a chemical process. Actually all organic matter is made of molecules. It contains neutrons, protons and electrons. Neutrons and protons form the nucleus of an atom. Electrons become inactive. They transfer energy to photons that cause fires.
All fuels are carbon based. They are LPG cylinders, candles, matches. However, they all differ in flame and its color. Because the atmosphere contains oxygen. When electrons transfer energy to photons.. a flame comes out. At that point oxygen meets the flame. Carbon atoms change. Carbon atoms.. are transformed into dioxide. It changes the flame color.
If there is more oxygen.. it will completely convert the carbon into carbon dioxide. The flame turns blue. If there is not enough oxygen, the carbon cannot be converted into CO2. The top of the flame appears black. We can see this.
Candles, wood, and paper are considered carbon atoms. If we consider them in terms of oxygen in the atmosphere.. they contain more carbon. That’s why they get oxidized. But not completely, that’s why the flame from them is orange and yellow.
Common fuels like LPG, methane have very low carbon content. When these are oxidized.. oxygen diffuses to them completely. Due to this their flame appears blue.
The flame of any fire or its color depends on the oxygen in the atmosphere. It reacts with the combustible carbon to form the color of the flame.
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