How Do You Tell If A Reaction Is Spontaneous At All Temperatures?
How Do You Tell If A Reaction Is Spontaneous At All Temperatures? If ΔH is negative and ΔS is positive, the reaction is spontaneous at all temperatures because the change in Gibbs free energy is always negative. Contrastingly, if ΔH is positive and ΔS is negative, the reaction is nonspontaneous at all temperatures as written.