Assertion (A): For every chemical reaction at equilibrium, standard Gibbs enegry of the reaction is zero.
Reason (R ) : At constant temperature and pressure chemical reactions are spontaneous in the direction of the decreasing Gibbs energy.

Options

A. Statement-I is true, Statement-II is True and Statement-II is a correct explanation for statement -I
B. Statement -I is true, Statement-II is true and Statement-II is NOT a correct explanation for Statement-I.
C. Statement-I is true, Statement- II is False
D. Statement- I is False, Statement- II is True.

Answer

d

Explanation

At equilibrium `DeltaG=0, DeltaG^(@) ne 0`
As `DeltaG` decreases reaction becomes more spontaneous