Title: gradual potential-energy surface Long Title: IUPAC Gold Book - gradual potential-energy surface DOI: 10.1351/goldbook.G02674 Status: current Definition These terms relate to the steepness of the energy rise along the reaction path of a potential-energy surface. Related Terms - potential-energy surface: https://goldbook.iupac.org//terms/view/P04780 - reaction path: https://goldbook.iupac.org//terms/view/R05174 Source - PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 167 (https://doi.org/10.1351/pac199668010149) Other Outputs - html: https://goldbook.iupac.org/terms/view/G02674/html - json: https://goldbook.iupac.org/terms/view/G02674/json - xml: https://goldbook.iupac.org/terms/view/G02674/xml Citation: Citation: 'gradual potential-energy surface' 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.G02674 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: 2026-05-18T11:33:42+00:00