Statement-1 : For every chemical reaction at equilibrium, standard Gibbs energy of reaction is zero.

Question

Statement-1 : For every chemical reaction at equilibrium, standard Gibbs energy of reaction is zero.\ Statement-2 : At constant temperature and pressure, chemical reactions are spontaneous in the direction of decreasing Gibbs energy.\

Professor PC Thomas Classes · Answer

(d): At equilibrium, $\quad \Delta G=0$, but standard Gibbs energy $\left(\Delta G^{\circ}ight)$ of a reaction may or may not be zero. For reaction to be spontaneous $\Delta G$ (Gibbs energy) should be more negative. i.e., $\Delta G<0$.\