For the electrochemical cell, , V and V. From this data, one can deduce that — Electrochemistry Chemistry Question

💡 Solution & Explanation

The standard reduction potential of $M^+$ to $M$ is +0.44 V, and the standard reduction potential of $X$ to $X^-$ is +0.33 V. For the reaction $M^+ + X^- \rightarrow M + X$, the cell potential is $E^\circ_{cathode} - E^\circ_{anode} = E^\circ_{M^+\|M} - E^\circ_{X\|X^-} = 0.44 - 0.33 = +0.11$ V. Since $E^\circ$ is positive, this reaction is spontaneous. Therefore, correct answer is B.