Question

The standard electrode potential for the two electrode $2Cl^{-}$ and $\rightarrow$ are respectively 0.5 $\rightarrow$ and 0.75 $\rightarrow$. The $\rightarrow$ of the given cell $\rightarrow$ will be.

• A. 1.25 $\rightarrow$
• B. – 1.25 $\rightarrow$
• C. – 0.25 $\rightarrow$
• D. 0.25 $\rightarrow$

Answer 1

Answer: (D)

0.25 $\rightarrow$

Answer 2

$\overset{\text{Anode}}{A|A^{+}(a = 1)||}\overset{\text{Cathode}}{B^{+}(a = 1)|B}$

$EMF = E_{cathode} - E_{anode} = 0.75 - (0.5)$; $EMF = 0.25V$.