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

B

Explanation

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