exothermic reaction

https://doi.org/10.1351/goldbook.E02269
A reaction for which the overall standard @E02141@ change \(\Delta H^{\,\unicode{x26ac}}\) is negative.
Source:
PAC, 1996, 68, 149. (A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)) on page 165 [Terms] [Paper]