{"term":{"id":"15318","title":"Clarke–Glew equation","longtitle":"IUPAC Gold Book - Clarke–Glew equation","doi":"10.1351\/goldbook.15318","code":"15318","status":"current","definitions":[{"id":1,"text":"Semi-empirical equation describing the temperature dependence of the standard Gibbs energy of solution, \\[\\Delta_{\\rm{sln}}G^{^⦵\\!}(T, p^{_{^⦵\\!}})\/RT = A_{0} + A_{1}(T_{\\rm{ref}}\/T) + A_{2}\\ln(T\/T_{\\rm{ref}}) + A_{3}(T\/T_{\\rm{ref}}) + A_{4}(T\/T_{\\rm{ref}})^{2} + \\ldots\\] where the \\(A_{i}\\) are constants that can be related to thermodynamic quantities (but subject to uncertainty because of statistical correlations among the fitting coefficients) and \\(T_{\\rm{ref}}\\) is a reference temperature.","links":[{"term":"Clarke–Glew–Weiss equation","url":"https:\/\/goldbook.iupac.org\/terms\/view\/15319"}],"sources":["PAC, 2008, 80, 233. 'Glossary of terms related to solubility (IUPAC Recommendations 2008)' on page 240 (https:\/\/doi.org\/10.1351\/pac200880020233)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/15318\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/15318\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/15318\/plain"},"citation":"Citation: 'Clarke–Glew equation' 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.15318","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":"2026-06-30T23:13:18+00:00"}}