19.6: Gibbs Energy Change and Equilibrium – Chemistry LibreTexts

In particular, notice that in the above equation the sign of the entropy change determines whether the reaction becomes more or less spontaneous as the temperature is raised. For any given reaction, the sign of Δ H can also be positive or negative.

https://chem.libretexts.org/Bookshelves/General_Chemistry/Map%3A_General_Chemistry_(Petrucci_et_al.)/19%3A_Spontaneous_Change%3A_Entropy_and_Gibbs_Energy/19.6%3A_Gibbs_Energy_Change_and_Equilibrium