આપેલ $: \frac{2.303 RT }{ F }=0.06 V$
$Pd _{( aq )}^{2+}+2 e ^{-} \rightleftharpoons Pd ( s ) \quad E ^{\circ}=0.83\,V$
$PdCl _4^{2-}( aq )+2 e ^{-} \rightleftharpoons Pd ( s )+4 Cl ^{-}( aq )$
$E ^{\circ}=0.65\,V$
\(- nFE\)
\(\text { cell }=- RT \times 2.303\left(\log _{10} K \right)\)
\(\frac{ E _{ Cell }^{ o }}{0.06} \times n =\log K\)
\(Pd ^{+2}( aq .)+ 2 e ^{-} \rightleftharpoons Pd ( s ), E _{\text {cat,red }}^{ o }=0.83\)
\(\left. Pd ( s )+4 Cl ^{-} \text {(aq. }\right) \rightleftharpoons PdCl _4^{2-},( aq )+2 e ^{-}, E _{\text {Anode,Oxid }}^0=0.65\)
Net Reaction \(\rightarrow Pd ^{2+}\) (aq.) \(+4 Cl ^{-}\)(aq.) \(\rightleftharpoons PdCl _4^{2-}\) (aq.)
\(E _{\text {cell }}^{\circ}= E _{\text {cat,reed }}^0- E _{\text {Andode,oxid }}^0\)
\(E _{\text {cell }}^{\circ}=0.83-0.65\)
\(E _{\text {cell }}^{\circ}=0.18\)
Also \(n =2\)
Using equation \((1),(2)\) and \((3)\) \(\log K=6\)
$Fe_{(aq)}^{3 + } + {e^ - } \to Fe_{(aq)}^{2 + }$ ; ${E^o} = 0.771{\mkern 1mu} \,volts;{\mkern 1mu} $
${\mkern 1mu} {I_{2(g)}} + 2{e^ - } \to 2I_{(aq)}^ - \,;{\mkern 1mu} $ ${E^o} = 0.536{\mkern 1mu} \,volts$
કોષ પક્રિયા $2Fe^{3+}_{(aq)} + 2l^{-}_{(aq)} \rightarrow 2Fe^{2+}_{(aq)} + I_{2(g)}$ માટે $E^o_{cell} = ….$
$E.C.E\, Zn=32.5\,, \,E.C.E \,Cu=31.5)$
આપેલ: $E _{ x ^{2+} \mid x }^0=-2.36\,V$
$E _{ Y ^{3+} \mid Y }^0=+0.36\,V$
$\frac{2.303\,RT }{ F }=0.06\,V$