Question

The change in potential of the half-cell Cu\textsuperscript{2+|Cu, when aqueous Cu\textsuperscript{2+} solution is diluted 100 times at 298 K? \(\left( \frac{2.303 RT}{F} = 0.06 \right)\)}

• A. increases by 120 mV
• B. decreases by 120 mV
• C. increases by 60 mV
• D. decreases by 60 mV
• E. no change

Hint:

Dilution decreases the concentration of reactants ($Cu^{2+}$), which pushes the equilibrium to the left, thereby decreasing the reduction potential.

Answer 1

The Correct Option is D