2006-09-26 11:20:47 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Physics
A simple starting point is to assert a very fundamental law of Thermodynamics,
Anything that has a temperature radiates (for more, look into Stefan-Boltzmann law)...
The distribution of the radiation across the spectrum also follows a very basic law (look into Black-Body radiation). The hotter the object the more radiation is emitted in the visible portion of the spectrum. Combustion creates very hot products of combustion, hence the light.
2006-09-26 11:37:55 · answer #1 · answered by entropy 3 · 2⤊ 0⤋
By Definition combustion (Lavoisier was responsible for that)is an atomic interaction between certain elements or coumpound of elements with OXIGEN atoms given an activation energy.Usually light particles are squeezed out of the reaction.
Light radiation can be immitted without combustion . This happens in Nuclear fussions in the stars.In this scenario no oxigen need to be involved.
2006-09-28 08:07:25 · answer #2 · answered by goring 6 · 0⤊ 0⤋
Combustion, like many chemical reactions, involves the formation of covalent bonds; this process results in the release of electromagnetic energy in the form of photons as electrons in the molecules involved move from one energy state to another. Combustion reactions are exothermic, so they will definitely release photons as opposed to absorbing energy. Some of these photons can be observed directly. However, most of what we see comes from secondary excitations, molecules being heated up by all these photons flying around, etc.; when things get hot enough, they give off what's called "blackbody radiation" - hot things glow, like the filament of a light bulb or a piece of iron in a forge. If they get hot enough, they release light in the visible spectrum, which we see as flames, etc.
2006-09-26 11:40:03 · answer #3 · answered by astazangasta 5 · 1⤊ 0⤋
Light is a form of energy, although not always necessary in combustion !
2006-09-26 23:35:47 · answer #4 · answered by SCARFACE 2 · 0⤊ 0⤋
The air is being heated and tries to get rid of its excess energy by releasing photons.
2006-09-28 04:06:06 · answer #5 · answered by yermomsux 2 · 0⤊ 0⤋
Incidentally, and by-the-way, light need not be emitted during combustion.
2006-09-26 21:23:29 · answer #6 · answered by clausiusminkowski 3 · 1⤊ 0⤋
All combuston are exothermic reactions and realeases energy in the form of light and heat.
2006-09-26 12:04:49 · answer #7 · answered by Dr M 5 · 1⤊ 0⤋
Light, along with heat and sound, is a form of energy.
2006-09-26 11:21:44 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Heat is a byproduct of the chemical reaction, and it emits light.
2006-09-26 11:21:58 · answer #9 · answered by ndtaya 6 · 1⤊ 0⤋
Molecules accelerated by heat to give up photons?
2006-09-26 11:22:07 · answer #10 · answered by Anonymous · 0⤊ 1⤋