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Anode mif cell reacion\mathrm{Fe}(\mathrm{S}) \longrightarrow \mathrm{Fe}^{3+}+3 e^{-}cathode kalf cell reation\begin{array}{l}\mathrm{Fe}^{3+} \\(2.33 \mathrm{~m})\end{array} \mathrm{Be}^{\mathrm{C}} \longrightarrow \mathrm{Fe}we know that From Nunyt eqnSince \left[\mathrm{Fe}^{3+}\right]_{\text {cathude }}>\left[\mathrm{Fe}^{3+}\right]_{\text {ande }} Theretore EmR of cell is (i)e and the cell will be exergonic\begin{array}{l}E_{c u 1}=0-\frac{0.0591}{3} \log \left[\frac{0.0011}{2.33}\right] \\=-\frac{0.0591}{3}\left[\log 4.72 \times 10^{-4}\right] \\=\frac{-0.0591}{3}(-4+\log 4 .+2) \\=-\frac{0.0591}{3} \times-3.32 \\E(u 1=0.066 \text { volt }=\text { option (a) } \\\end{array} ...