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Activation energy
In chemistry, activation energy EA is the minimum impact energy required for a chemical reaction to take place. [1] In a reaction, the reactant molecules come together and chemical bonds are stretched, broken, and formed in producing the products: Reactants → Products
During this process the energy of the system increases to a maximum, then decreases to the energy of the products. The “activation energy” is the difference between the maximum energy and the energy of the reactants; i.e. it is the energy barrier that has to be overcome for the reaction to proceed. [1] The activation energy is said to be the heightened measure of energy during the transition state of the chemical reaction.
References
1. Daintith, John. (2004). Oxford Dictionary of Chemistry. New York: Oxford University Press.
External links
● Activation energy – IoHT Glossary.
Sadi-Carnot |
Latest page update: made by Sadi-Carnot
, Aug 10 2009, 3:00 PM EDT
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