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catalysis |
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catalysis /ca·tal·y·sis/ (kah-tal´ĭ-sis) increase in the velocity of a chemical reaction or process produced by the presence of a substance that is not consumed in the net chemical reaction or process; negative c. denotes the slowing down or inhibition of a reaction or process by the presence of such a substance.catalyt´ic
catalysis [kətal′əsis] Etymology: Gk, katalein, to dissolve an increase in the rate of a chemical reaction that is caused by a substance that is neither permanently altered nor consumed by the reaction. Compare negative catalysis. See also catalyst. catalytic. adj., catalyze, v. catalysis (k n the increase in rate of a chemical reaction, induced by a substance called a catalyst, which takes no part in the reaction and remains unchanged. catalysis increase in the velocity of a chemical reaction or process produced by the presence of a substance that is not consumed in the net chemical reaction or process; negative catalysis denotes the slowing down or inhibition of a reaction or process by the presence of such a substance. covalent catalysis one type of enzyme reaction with substrates to form very unstable, covalently joined enzyme-substrate complexes which undergo further reaction. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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VALENCIA -- A group of thieves has a yen for certain kinds of metal, those found in the catalytic converters on the underbellies of Toyotas. Honda's next-generation diesel engine employs a revolutionary NOx catalytic converter that enables a great reduction in NOx emissions sufficient to meet stringent U. An important series of saltwater tests of catalytic converters in marine engines will go ahead as planned this summer, after the Environmental Protection Agency (EPA) and the California Air Resources Board (CARB) agreed to fund in-water tests. |
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