American Heritage® Dictionary of the English Language, Fourth Edition
- n. Chemical decomposition induced by light or other radiant energy.
Century Dictionary and Cyclopedia
- n. In botany, the movements of protoplasm under the influence of light: distinguished as apostrophe and epistrophe. In the first the chlorophyl-grains collect upon the cell-walls which are parallel to the plane of incident light; in the latter, upon those which are at right angles to it.
- From Ancient Greek φωτ- (phōt-), root of φῶς (phōs, "light") + λύσις (lusis, "decomposition"). (Wiktionary)
“4 ClOOCl + hv -- ClO + ClO so the rate of photolysis, which is proportional to the absorption cross-section, determines how much ClO is available for the cycle.”
“Another way to initiate some reactions rapidly is flash photolysis, i.e. by short light flashes, a method developed by Ronald G.W. Norrish at Cambridge and George”
“Oil floating at the ocean's surface has a limited lifespan - it's been collected and destroyed by skimming, booms, chemical dispersants, evaporation, photolysis, biodegradation - and took a beating from wind and waves when tropical depression Bonnie blew through over the weekend.”
“Ozonolysis and photolysis of alkene-terminated self-assembled monolayers on quartz nanoparticles: implications for photochemical aging of organic aerosol particles, J. Park, A.L. Gomez, M.L. Walser, A. Lin, and S.A. Nizkorodov, Phys.”
“It does not depend on the photolysis rate for the CFCs, only on the observed halogen loading and measured reaction rates.”
“Double boxes are stable species and the arrows represent photolysis.”
“In the stratosphere, the source gases are converted through photolysis and reaction with the hydroxyl radical to inorganic species of bromine, chlorine, and fluorine.”
“Solar actinic flux spectroradiometry: a technique for measuring photolysis frequency in the atmosphere.”
“They then generated OH, by photolysis of acetone at 280 nm followed by its reaction with O2 to form OH”
“Despite this low efficiency, the rate of OH production from NO2* in urban atmospheres can be comparable to the classical OH source ozone photolysis.”
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