05914 IUPAC Gold Book - standard entropy of activation 10.1351/goldbook.S05914 S05914 current 1 Entropy change associated with the activation reaction. Entropy https://goldbook.iupac.org//terms/view/E02149 activation reaction https://goldbook.iupac.org//terms/view/A00103 standard reaction quantities https://goldbook.iupac.org//terms/view/S05923 Green Book, 2nd ed., p. 57 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf) https://goldbook.iupac.org/terms/view/S05914/html https://goldbook.iupac.org/terms/view/S05914/json https://goldbook.iupac.org/terms/view/S05914/plain Citation: 'standard entropy of activation' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.S05914 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. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . 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. 2026-07-02T19:53:32+00:00