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WordNet-Online
Definitions from WordNet | ||||
Definitions from the WebPhotochemical ReactionDescription:A photochemical reaction refers to a chemical reaction that is triggered by or involves light energy. In such reactions, the absorption of photons leads to the generation of high-energy excited states, which then participate in various chemical processes. Senses:Sense 1 (Chemistry):In chemistry, a photochemical reaction involves the absorption of light by a molecule, leading to its transformation into one or more different molecules. These reactions often occur at a faster rate compared to thermal reactions, and they can include processes such as isomerization, fragmentation, or bond formation. Example Sentence: The photochemical reaction of chlorophyll converts light energy into chemical energy during photosynthesis. Sense 2 (Environmental Science):In environmental science, a photochemical reaction refers to a series of chemical transformations that occur when pollutants and sunlight interact in the atmosphere. These reactions play a crucial role in the formation of smog and the production of harmful air pollutants such as ozone. Example Sentence: Photochemical reactions involving nitrogen oxides and volatile organic compounds contribute to the formation of urban smog. Related products on Amazon:Books on Photochemical Reactions in Organic Chemistry | ||||
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