https://doi.org/10.1351/goldbook.E02141
@I03103@ of a system plus the product of pressure and volume. Its change in a system is equal to the heat brought to the system at constant pressure.
Sources:
Green Book, 2nd ed., p. 48 [Terms] [Book]
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2187 [Terms] [Paper]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 972 [Terms] [Paper]