{"term":{"id":"02109","doi":"10.1351\/goldbook.E02109","code":"E02109","status":"current","longtitle":"IUPAC Gold Book - energy of activation of an electrode reaction","title":"energy of activation","termversion":"2.3.3","lastupdated":"2014-02-24","definitions":[{"id":"1","text":"This is defined by the equation: U ‡ =- R T ( ∂ ( ln I 0 ) ∂ T- is the exchange current. At any overpotentialη it is defined by the equation: U ‡ η =- R ( ∂ ( ln ( | I | ) ) is the current passing from the electrode into the electrolyte.","contexts":{"of":["an electrode reaction"]},"links":[{"title":"exchange current (of an electrode reaction)","type":"internal","url":"https:\/\/goldbook.iupac.org\/terms\/view\/E02238"},{"title":"overpotential","type":"internal","url":"https:\/\/goldbook.iupac.org\/terms\/view\/O04358"}],"math":[{"alttext":"U ‡ =- R T ( ∂ ( ln I 0 ) ∂ T-","latex":"U^{\\ddagger } = -R\\ T\\ (\\frac{\\partial (\\ln I_{0})}{\\partial T^{-1}})_{p,c_{j},...}"},{"alttext":"I0","latex":"I_{0}"},{"alttext":"η","latex":"\\eta "},{"alttext":"U ‡ η =- R ( ∂ ( ln ( | I | ) )","latex":"U^{\\ddagger }\\left(\\eta \\right) = -R\\ (\\frac{\\partial (\\ln (|I|))}{\\partial T^{-1}})_{p,\\eta ,c_{j},...}"},{"alttext":"I","latex":"I"}],"sources":["PAC, 1974, 37, 499. 'Electrochemical nomenclature' on page 516 (https:\/\/doi.org\/10.1351\/pac197437040499)"]}],"referencedin":[{"title":"Wikipedia - Energía de activación (es)","url":"https:\/\/es.wikipedia.org\/wiki\/Energía_de_activación"}],"links":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/E02109\/html","json":"https:\/\/goldbook.iupac.org\/terms\/view\/E02109\/json","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/E02109\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/E02109\/plain","pdf":"https:\/\/goldbook.iupac.org\/terms\/view\/E02109\/pdf"},"citation":"Citation: 'energy of activation' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351\/goldbook.E02109","license":"The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/) for individual terms.","collection":"If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .","disclaimer":"The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.","accessed":"2024-06-23T20:27:16+00:00"}}