Question

I know the basic relation that ΔG=ΔG⁰+RTln(Q) where Q is the reaction quotient, my doubt is that if Q=1 at equilibrium then ΔG=ΔG⁰ but will ΔG=0 or ΔG≠0?

Answer 1

When Q = 1 at equilibrium, ΔG becomes ΔG⁰, but the value of ΔG will depend on whether it equals zero or not.

Step-by-step explanation:

The equation ΔG = ΔG⁰ + RTln(Q) represents the relationship between the change in Gibbs free energy (ΔG) and the reaction quotient (Q). When Q = 1 at equilibrium, ΔG becomes ΔG⁰. However, the value of ΔG will depend on whether it equals zero or not.

If ΔG = 0, it means the system is at equilibrium. This implies that the forward and reverse reactions occur at the same rate, and there is no net change in the concentrations of reactants and products.

On the other hand, if ΔG ≠ 0, it indicates that the system is not at equilibrium and the reaction will occur spontaneously in the direction that reduces ΔG to zero.