12797 IUPAC Gold Book - reversing heat flow 10.1351/goldbook.12797 12797 current 1 In modulated-temperature DSC the heat-capacity component of the total heat flow that is in-phase with the temperature modulation. The reversing-heat-flow component contains the changes in the heat capacity, \(C_{p}\), of the specimen, in particular during the glass transition. The term "reversing" must not be confused with "reversible". modulated-temperature DSC https://goldbook.iupac.org//terms/view/12790 PAC, 2013, 85, 1017. 'Glossary of terms relating to thermal and thermomechanical properties of polymers (IUPAC Recommendations 2013)' on page 1037 (https://doi.org/10.1351/PAC-REC-12-03-02) https://goldbook.iupac.org/terms/view/12797/html https://goldbook.iupac.org/terms/view/12797/json https://goldbook.iupac.org/terms/view/12797/plain Citation: 'reversing heat flow' 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.12797 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. 2026-07-13T10:26:15+00:00