isoequilibrium relationship

https://doi.org/10.1351/goldbook.I03280
A relationship analogous to the isokinetic relationship but applied to equilibrium data. The equation defining the isoequilibrium temperature β is: ΔrHβ ΔrS=constant where ΔH and ΔS are enthalpy and entropy of reaction, respectively.
Source:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1128 [Terms] [Paper]