heat capacity, C 

https://doi.org/10.1351/goldbook.H02753
Heat brought to a system to increase its temperature divided by that temperature increase. At constant volume CV=(∂U∂T)V at constant pressure Cp=(∂H∂T)p, where U is the internal energy and H the enthalpy of the system.
Sources:
Green Book, 2nd ed., p. 48 [Terms] [Book]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 975 [Terms] [Paper]
Citation: 'heat capacity' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.H02753 RIS BibTex EndNote
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Last revised: October 7, 2008