Question

What conditions make `DeltaG` always positive?

Answer 1

If ΔH is positive and ΔS is negative

Explanation:

If reaction is endothermic (ΔH is +ve), and entropy decreases (ΔS is -ve), then ΔG must be +ve and reaction is reactant-favored in the standard state.

Where Q is the reaction quotient at that moment in time.