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Definition of Energy of activation
1. Noun. The energy that an atomic system must acquire before a process (such as an emission or reaction) can occur. "Catalysts are said to reduce the energy of activation during the transition phase of a reaction"
Medical Definition of Energy of activation
1. Energy that must be added to that already possessed by a molecule or molecules in order to initiate a reaction; usually expressed in the Arrhenius equation relating a rate constant to absolute temperature. (05 Mar 2000)
Lexicographical Neighbors of Energy Of Activation
Literary usage of Energy of activation
Below you will find example usage of this term as found in modern and/or classical literature:
1. Journal of the American Chemical Society by American Chemical Society (1879)
"These activation parameters are thermodynamic excess functions which distribute
themselves between the ДЯ and the TAS terms of the free energy of activation ..."
2. Catalytic Action by Kaufman George Falk (1922)
"... and known variously as "heat of activation," "energy of activation," and "critical
increment." The quantity Q has been interpreted in various ways. ..."
3. Methods and Styles in the Development of Chemistry by Joseph Stewart Fruton (2002)
"In the present form of the theory, the energy of activation (represented by a
peak in a plot of energy versus the reaction coordinate) is related to the ..."
4. 40 Years of Entropy and the Glass Transition: Symposium Papers edited by Gregory B. McKenna, Sharon C. Glotzer (1997)
"... the constant of integration C is (part of) the energy of activation. ...
so that we have only energy of activation while above T2 the specific heat is ..."
5. Design and Use of Superior Asphalt Binders by Richard R. Davison (1994)
"... then = k = C where A is the carbonyl area, k the rate constant, 6 is time,
and Ea constant energy of activation unique to the reaction taking place. ..."
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