contact action noun acceleration of a chemical reaction induced the presence of material that is chemically unchanged at the end of the reaction; `of the top 50 commodity chemicals, 30 are created ...
Found op http://wordnetweb.princeton.edu/perl/webwn?s=catalysis
(kә-tal´ә-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 catalysis denotes the slowing down or inhibition of a reaction or process by the presence of such a su...
Found op http://www.encyclo.co.uk/local/21001
• (n.) Dissolution; degeneration; decay. • (n.) A process by which reaction occurs in the presence of certain agents which were formerly believed to exert an influence by mere contact. It is now believed that such reactions are attended with the formation of an intermediate compound or com...
Found op http://thinkexist.com/dictionary/meaning/catalysis/
in chemistry, the modification of the rate of a chemical reaction, usually an acceleration, by addition of a substance not consumed during the ... [10 related articles]
Found op http://www.britannica.com/eb/a-z/c/36
Catalysis is the change in rate of a chemical reaction due to the participation of a substance called a catalyst. Unlike other reagents that participate in the chemical reaction, a catalyst is not consumed by the reaction itself. A catalyst may participate in multiple chemical transformations. Cata...
Found op http://en.wikipedia.org/wiki/Catalysis
is a phenomena in which a relatively small amount of material augments the rate of reaction without itself being consumed.
Found op http://www.amgas.com/gloss.htm
The changing of a rate of a chemical reaction by the addition of a small amount of a substance which is unchanged at the end of the reaction. Such a substance is called a catalyst, though this term is usually reserved for substances which speed up reactions; additives which slow down reactions are c...
Found op http://www.daviddarling.info/encyclopedia/C/catalysis.html
Type: Term Pronunciation: kă-tal′i-sis Definitions: 1. The effect that a catalyst exerts on a chemical reaction.
Found op http://www.medilexicon.com/medicaldictionary.php?t=14935
1) Chemical action 2) Chemical change 3) Chemical process 4) Contact action
Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/catalysis/1
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