Other than only PV work,what reaction conditions must be satisfied for the sign of ΔG to be used as a criterion for spontaneity?

Question

Quizplus · Accepted Answer

The sign of ΔG can be used as a criterion for spontaneity only under constant temperature and pressure conditions. This is because the Gibbs free energy, ΔG, takes into account both the enthalpy and entropy changes of a reaction, which are also affected by pressure and temperature. Holding these two parameters constant allows for a more accurate assessment of the spontaneity of a reaction based on the sign of ΔG. The other conditions listed (constant volume and temperature or constant volume only) do not take into account the pressure changes that could affect the enthalpy and entropy changes, and therefore cannot be used to determine spontaneity based solely on ΔG.

Other Than Only PV Work,what Reaction Conditions Must Be Satisfied