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Chemiluminescence
emission of light as a result of a chemical reaction / From Wikipedia, the free encyclopedia
Chemiluminescence (or Chemoluminescence) is a kind of luminescence. It is a process of making light from a chemical reaction. Chemiluminescence in biological systems is called bioluminescence.
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The light made in chemiluminiscence is not directly related to heat. A simple two step example of a reaction of A, and B, that produces; C, D, and light.
- [A] + [B] → [C*] + [D]
- [C*] → [C] + Light
C* is an excited state of C.
This reaction is simpler than most chemiluminesence reactions. The excited state happens when electrons are pushed into a higher orbit by the energy of a chemical reaction. The excited state is less stable than the ground state. The electrons in the excited state fall to the ground state (lower energy), emitting light.
The amount of measurable light made is called radiant intensity: ICL (photons emitted per second).