Which of the following is not correct?
(a) Δ G is zero for a reversible reaction.
(b) Δ G is positive for a spontaneous reaction.
(c) Δ G is negative for a spontaneous reaction.
(d) Δ G is positive for a non-spontaneous reaction.
ΔG gives a criteria for spontaneity at constant pressure and temperature.
(i) If ΔG is negative (< 0), the process is spontaneous.
(ii) If ΔG is positive (> 0), the process is non-spontaneous.
(iii) If ΔG is zero then reaction is equilibrium.