$\frac{{{{\text{W}}_{\text{1}}}}}{{{{\text{E}}_{\text{1}}}}}\,\, = \,\,\frac{{{W_2}}}{{{E_2}}}\,\,\,\, \Rightarrow \,\,\,\frac{{{W_{{H_2}}}}}{{{E_{Mg}}}}\,\, = \,\,\frac{{{E_{{H_2}}}}}{{{E_{Mg}}}}\,\, = \,\,\frac{1}{{12}}$
$E _{ FeO _4^{2-} / Fe ^{2+}}^\theta$ એ $x \times 10^{-3} V$. તો $x$ નું મૂલ્ય $.........$.છે.