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activation energy
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Activation energy
In chemistry, activation energy is a term introduced in 1889 by the Swedish scientist Svante Arrhenius that is defined as the energy that must be overcome in order for a chemical reaction to occur. Activation energy may also be defined as the minimum energy required to start a chemical reaction. The activation energy of a reaction is usually denoted by Ea, and given in units of kilojoules per mole.

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activation energy
Noun
1. 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"
(synonym) energy of activation
(hypernym) energy


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activation energy
n. aktivační energie

General Chemistry GlossaryDownload this dictionary
activation energy
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(Ea) The minimum energy required to convert reactants into products; the difference between the energies of the activated complex and the reactants.

Dizionario inglese-italiano 1.0.012Download this dictionary
ACTIVATION ENERGY
ENERGIA PER L'ATTIVAZIONE. ENERGIA DI ATTIVAZIONE

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