We know for a spontaneous reaction
\(\Delta G \,<\,0 \text {. }\)
\(\therefore- RT \ln K \,<\,0\)
\(\therefore \ln K\,>\,0\)
\(\therefore K\,>\,1\)
and \(- nF E ^{\circ}<0\)
\(\therefore E _{\text {cell }}^{\circ}\,>\,0\)
$Fe_{(aq)}^{3 + } + {e^ - } \to Fe_{(aq)}^{2 + }$ ; ${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 $E^o_{cell} = ….$
$[\Lambda_{\mathrm{H}^{+}}^{\circ}=350 \,\mathrm{~S}\, \mathrm{~cm}^{2}\, \mathrm{~mol}^{-1},\Lambda_{\mathrm{CH}_{3} \mathrm{COO}^{-}}^{\circ}=50\, \mathrm{~S}\, \mathrm{~cm}^{2}\, \mathrm{~mol}^{-1}]$
$2AgCl(s) + H_2(g) \rightarrow 2Ag(s) + 2H^{+} + 2Cl^{-}$ એ $G^o$ કેટલો થશે?