Question

Calculate emf of cell at 25ºC
Cell notation
$M\left|M^{2+}_{0.01}\right|\left|M^{2+}_{0.00001}\right|M$
If value of E⁰_cell is 4 volt (Given $\frac{RT}{F}$ in 10 = 0.06)

• A. 3.94 Volt
• B. 4.06 Volt
• C. 2.03 Volt
• D. 8.18 Volt

Answer 1

Answer: (A)

$E=E^{0}-\frac{0.059}{2}$ log $\frac{10^{-4}}{10^{-2}}$
$E=4-0.03$ log $10^{-2}$
$\quad$$\quad$$\quad$$4-0.06=3.94$