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Photochemistry - Wikipedia
Photochemistry is the branch of chemistry concerned with the chemical effects of light. Generally, this term is used to describe a chemical reaction caused by absorption of ultraviolet (wavelength from 100 to 400 nm), visible (400–750 nm), or infrared radiation (750–2500 nm). [1]
Photochemical Reaction: Definition, Examples, & Applications
A photochemical reaction is a chemical reaction initiated by the absorption of energy in the form of light (photons), resulting in specific products. Usually, molecules prefer to remain in the state of lowest energy, known as the ground state.
Photochemical reaction | Light-Induced Chemical Changes | Britannica
Photochemical reaction, a chemical reaction initiated by the absorption of energy in the form of light. The consequence of molecules’ absorbing light is the creation of transient excited states whose chemical and physical properties differ greatly from the original molecules.
Photochemistry - Michigan State University
A photochemical reaction occurs when internal conversion and relaxation of an excited state leads to a ground state isomer of the initial substrate molecule, or when an excited state undergoes an intermolecular addition to another reactant molecule in the ground state.
28.3: Organic Photochemistry - Chemistry LibreTexts
Photochemical chlorination is an example of a photochemical reaction that can have a high quantum yield - that is, many molecules of chlorination product can be generated per quantum of light absorbed. The quantum yield of a reaction is said to be unity when 1 mol 1 mol of reactant is converted to product (s) per einstein 1 1 of light absorbed.
Photochemical Reaction - Definition & Theoretical Concepts - BYJU'S
A photochemical reaction is a chemical reaction triggered when light energy is absorbed by a substance’s molecules. This response leads the molecules to experience a temporary excited state, thus altering their physical and chemical properties from the substance’s initial molecule.
Photochemical Reaction: Definition, Types, Equation, Mechanisms
Some chemical reactions known as photochemical reactions require light energy to initiate. When reactant molecules absorb light energy, such reactions occur. This chemical reaction causes the molecules to enter a transient excited state, changing their chemical and physical characteristics.
Photochemical Reaction - an overview | ScienceDirect Topics
A photochemical reaction is defined as a chemical transformation that occurs in surface waters or on surfaces upon absorption of radiation, leading to modifications in the molecular composition of organic matter and associated compounds. You might find these chapters and articles relevant to this topic.
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