Calculate the standard e.m.f. of the reaction {Fe}^{3+}+3 {e}^{-} \to {Fe}_{( {s})} \epsilon_{3}^{0}=? Given {Fe}^{3+}+ {e}^{-} \to {Fe}^{2+} \epsilon_{1}^{0}=0.771 {V} {Fe}^{2+}+2 {e}^{-} \to {Fe}_{( {s})} \epsilon_{2}^{0}=-0.44 {V}

JEE Advanced 2020 Full Test 7 Paper 2

Question : 36 of 54

Marks: +1, -0

Calculate the standard e.m.f. of the reaction Fe3++3e−→Fe(s)ε30=?
Given Fe3++e−→Fe2+ε10=0.771V‌‌Fe2++2e−→Fe(s)ε20=−0.44V

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