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koray692
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how occur burning namely when something burn... what is the event in atomic size. atom can not burn what is burning and how occurred heat and light ...is heat vibration of the atoms ??
Burning is a chemical reaction that occurs between the material involved and the oxygen from the atmosphere. The oxygen molecules combine with the molecules of the material, and form new compounts (such as CO2) as well as giving off infrared and visible radiation. During the reaction, chemical bonds are broken and new bonds formed.koray692 said:how occur burning namely when something burn... what is the event in atomic size. atom can not burn what is burning and how occurred heat and light ...is heat vibration of the atoms ??
koray692 said:thanks for your answers...I understand how occur burning...and so how we feel the heat ...is heat atoms of vibration and when this vibration increase and hit us so we feel that like its heat.
Alkim said:Yes indeed, combustion is fast oxidation. But there is an important detail: usually there is flame. Flame is more than just a hot gas with quickly moving particles, it is plasma, whose visible and IR emission is due to atomic transitions.
97. Is fire a plasma?
The fire given off when burning for example, paper, wood, gasoline--is that another of the manifestations of a plasma? If it isn't plasma that makes the fire shine--what is it?
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You asked a good question, but the answer is--no, fire is not hot enough to create a plasma.
Alkim said:Anyway, part of the light especially in high temperature flame is due to electronic transitions, occurring not necessarily only in ions, but also in atoms and molecules.
Burning refers to a chemical reaction in which a substance combines rapidly with oxygen and releases heat and light. This process is also known as combustion.
Burning occurs when a substance is heated to its ignition temperature, which causes it to react with oxygen in the air. This reaction releases energy in the form of heat and light.
The release of energy during combustion is what causes heat. This energy is released when the chemical bonds between the atoms in the burning substance break apart and form new molecules.
The release of energy during combustion also produces light. The excited molecules in the burning substance release photons of light as they return to a lower energy state.
The rate of burning can be affected by factors such as the availability of oxygen, the temperature of the burning substance, and the surface area of the substance. Higher levels of oxygen, higher temperatures, and larger surface areas can all increase the rate of burning.