Question

If e fe2+/fe is x1 and e fe3+/fe is x2 then fe3+/fe2+ will be

Answer 1

Answer:

E+Fe+/Fe2+=2x1+3x2

Step-by-step explanation:

The EMF of E+Fe2+/Fe=x1

The EMF of E+Fe3+/Fe=x2

We have to find E+F+/Fe3+ =?

Let E+F+/Fe3+=z

The half reaction of E+Fe2+/Fe is given by

Fe2++2e−→Fe

Gibbs free energy of cell =−nEF

ΔG+=−2Fx1 …… (1)

The half reaction of E+Fe3+/Fe is given by

Fe3++3e−→Fe

ΔG+=−3Fx2 ……. (2)

The half reaction for EFe+/Fe3+ A

Fe+−e−→Fe2+

ΔG+=−(nFz)

=−Fz ….. (3)

Adding equation (1) & (2) and comparing with (3)

=−Fz=−2Fx1+(−3x1)

=−Fz=−F[2x1+3x2]

z=2x4+3x2

∴E+Fe+/Fe2+=2x1+3x2 .