If `E_(Fe^(2+))^(@)//Fe = -0.441 V`
and `E_(Fe^(3+))^(@)//Fe^(2+) = -0.771 V`
The standard `EMF` of the reaction
`Fe+2Fe^(3+) rarr 3Fe^(2+)`
will be:

If e_(Fe^(2+) //Fe)^@ =- 0. 44 1V . And E_(Fe^(3+)//Fe^(2+))^(o) = 0. 771 V . The standard emf of the reaction Fe +2 Fe^(3+) rarr 3Fe^(2+) will be .

If E ^(@) (Fe ^(2+)|Fe)=-0.441 V and E ^(@) (Fe ^(3+) |Fe ^(2+))=0.77 1V, the standard E.M.F. of the reaction : Fe + 2F e ^(3+) to 2F e ^(2+) will be

If E_(Fe^(2+)//Fe)^(@)=-0.440 V and E_(Fe^(3+)//Fe^(2+))^(@)=0.770 V , then E_(Fe^(3+)//Fe)^(@) is -

Given E_(Fe^(3+)//Fe)^(@) = -0.36 V, E_(Fe^(2+)//Fe)^(@)= - 0.439V . The value of standard electrode potential for the change , Fe^(3+)+e^(-) rarr Fe^(2+) will be