The value of equilibrium constant for a feasible cell reaction must be — Electrochemistry Chemistry Question

💡 Solution & Explanation

For a cell reaction to be spontaneous or 'feasible', its standard cell potential ($E^\circ_{cell}$) must be positive, which corresponds to a negative standard free energy change ($\Delta G^\circ < 0$). Since $\Delta G^\circ = -RT \ln K$, the equilibrium constant $K$ must be greater than 1.