We know for a spontaneous reaction
$\Delta G \,<\,0 \text {. }$
$\therefore- RT \ln K \,<\,0$
$\therefore \ln K\,>\,0$
$\therefore K\,>\,1$
and $- nF E ^{\circ}<0$
$\therefore E _{\text {cell }}^{\circ}\,>\,0$
$2AgCl(s) + H_2(g) \rightarrow 2Ag(s) + 2H^{+} + 2Cl^{-}$ એ $G^o$ કેટલો થશે?
કેથોડ , એનોડ
$Z{n^{2 + }}\,(aq)\, + \,2e\, \rightleftharpoons \,Zn\,(s)\,;\, - \,0.762\,V$
$C{r^{3 + }}\,(aq)\, + \,3e\, \rightleftharpoons \,Cr(s)\,;\, - \,0.740\,\,V$
$2{H^ + }\,(aq)\, + \,2e\, \rightleftharpoons \,{H_2}(g)\,;\,\,\,0.00\,\,\,V$
$F{e^{3 + }}\,(aq)\, + \,e\, \rightleftharpoons \,F{e^{2 + }}(aq)\,;\,\,\,0.770\,\,\,V$
નીચેનામાંથી કયો પ્રબળ રીડક્ષન કર્તા છે ?