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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 to describe the minimum energy which must be available to a chemical system with potential reactants to result in a chemical reaction. 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 (kJ/mol) or kilocalories per mole (kcal/mol).

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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 Glossary

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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 1.0.012

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ACTIVATION ENERGY
ENERGIA PER L'ATTIVAZIONE. ENERGIA DI ATTIVAZIONE


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