Which of the following is not correct ?

Options

A. `Delta G` is zero for a reversible reaction
B. `Delta G` is positive for a spontaneous reaction
C. `Delta G` is negative for a spontaneous reaction
D. `Delta G` is positive for a non-spontaneous reaction.

Answer

A, D

Explanation

`Delta G` gives a criteria for spontaneity at constant pressure and temperature.
(i) If `Delta G` is negative `(lt 0)`, the process is spontaneous
(ii) If `Delta G` is positive `(gt 0)`, the process is non-spontaneous.
(iii) If `Delta G` is zero then reaction is equilibrium