Which of the following is always true about a spontaneous cell reaction in a galvanic cell?

Step-by-step solution

For a spontaneous cell reaction, the change in Gibbs free energy must be negative, i.e., G The relationship between G , the standard Gibbs free energy change G^o , and the reaction quotient Q_C is given by: G = G^o + RT Q_C At equilibrium, G = 0 and Q_C = K_C , so: G^o = -RT K_C Substituting this back into the first equation, we get: G = -RT K_C + RT Q_C = RT ( Q_C K_C ) For the reaction to be spontaneous ( G RT ( Q_C K_C ) In a standard galvanic cell, the standard cell potential is positive, E^o_ cell > 0 . Since