A graph plotted between Δf0G  vs  Ttemperature is drawn below.This graphical representation is consistent with the reaction

ΔoS is -ve for option (1)and (4).∆0S is zero in option (2)ΔoS is +ve for option (3).ΔoG=ΔoH−TΔ0S.ΔoS  +ve…. as temperature increases, ΔoG decreases.ΔoS  −ve ….as temperature increases, ΔoG increases.