Chemiluminescence. Bluish light is emitted from a spiral tube in which a light-producing chemical reaction is taking place. Like the emission of heat,emission of light is one way of releasing energy during a chemical reaction. Photons of light are produced when excited electrons inside atoms change from a high-energy orbit to a low- energy orbit. Luminescence is the emission of light for any reason other than rise in tempera- ture. In chemiluminescence the cause is a chemical reaction such as the slow oxidation of phosphorus | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Winters, Charles D. |
Taille de l’image : | 3567 px × 5297 px |
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Property Release : | Non requis |
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