How does fire produce/give off light?


How does fire produce/give off light?

In: Other

It’s called incandescence. Increase in temperature of a material provides energy to it’s atoms, which puts the atoms in motion and results in the emission of thermal radiation. As the material gets hotter this emission produces visible light.

It gives of light for the same reason any object does. It isn’t special.

Light is emitted when an electron gets bumped.

In a light bulb flowing electricity (which is electrons) bump and hostile the electrons of the material that compared the light filament +or gas)

Fire is created when a chemical reaction involving oxygen combustion occurs. When these reactions happen the molecules are violently ripped apart by the oxygen, and snap apart as other oxygen comes barreling in to laugh onto the atoms that used to make up the molecules. This violent set of collisions bounce around the electrons in those atoms, and nearby ones. This released light photons.

The same way a red-hot stove does. Verily, the same way the same stove does when it hasn’t even been on.

At room temperature, everything still emits electromagnetic radiation, albeit peaking at a frequency so much lower as to be invisible to the human eye. High temperature just makes it bigger radiation and thus visible.

Fire is just heat causing more heat to be released, until the fuel is used up and it goes out. This positive feedback loop – “vicious cycle” – gets pretty hot, comparable to a stove: when it attains a stove’s temperature it’ll glow just the same.

Some over-proof liquors from the store will have a warning label that they can burn with an invisible flame (not quite getting hot enough).