$(F = 96500 \,C\, mol^{-1})$
For the cell reaction,
\(2 \mathrm{Ag}^{+}+\mathrm{Cu} \rightarrow \mathrm{Cu}^{2+}+2 \mathrm{Ag}\)
\(\Delta E^{\circ}\) cell \(=+0.46 \mathrm{V}\)
\(\Delta \mathrm{G}^{\circ}=-2 \times 96500 \times 0.46\)
\(=-88780 \mathrm{J}\)
\(=-88.7 \mathrm{kJ}\)
\(=-89.0 \mathrm{kJ}\)
$M|{M^ + }||{X^ - }|X,$ ${E^o}({M^ + }/M)$ $= 0.44\, V$ અને ${E^o}(X/{X^ - })$ $= 0.33\,V$ છે.આ આંકડા પરથી શું તારણ કાઢી શકાય?
$M{g^{2 + }} + 2{e^ - } \to Mg(s);\,\,E = - 2.37\,V$
$C{u^{2 + }} + 2{e^ - } \to Cu(s);\,\,\,E = + 0.33\,V$