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Photochemical Reaction

Last updated: May 24, 2019

What Does Photochemical Reaction Mean?

A photochemical reaction is a chemical reaction that is initiated when the molecules of a substance absorb light energy. This reaction causes the molecules to undergo a transient excited state, consequently changing their physical and chemical properties from the original molecule of the substance. When this occurs, these molecules tend to form a new structure, or combine with each other or other molecules, and transfer electrons, atoms, protons or other excitation energy to other molecules, thus causing a prolonged chemical chain reaction.

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Corrosionpedia Explains Photochemical Reaction

Photochemical reactions are related to a branch of chemistry known as photochemistry, which is concerned with the chemical effects of light.

A common example of a photochemical process is plant photosynthesis.

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