driving force (affinity) of a reaction, \(A\)

https://doi.org/10.1351/goldbook.D01860
The decrease in Gibbs energy on going from the reactants to the products of a @C01033@ (\(-\Delta G\)).
Source:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1107 [Terms] [Paper]