Question

plzz answer it .....ASAP.....

Answer 1

See the answer in the attachment!!

I have solved this question by using trick!

Well sorry for that! I didn't provided concept! but there's a reason behind it!

But I will make sure that you will get that concept by tomorrow!

Answer 2

Solution :

(i) F$e^{2+}$ + $\color{red} {2}$$e^{-}$ $\rightarrow$ Fe, $E°_{1}$ = $x_{1}$, $n_{1}$ = 2

(ii) F$e^{3+}$ + $\color{red} {3}$ $e^{-}$ $\rightarrow$ Fe, $E°_{2}$ = $x_{2}$, $n_{2}$ = 3

(iii) $Fe^{3+}$ + $e^{-}$ $\rightarrow$ F$e^{2+}$ $E°_{3}$ = ? $n_{3}$ = 1

( ii - i ) gives iii

Thus,

$\sf\huge\implies$ ∆$G°_{3}$ = ∆$G°_{2}$ - ∆$G°_{1}$

$\sf\huge\implies$ - $n_{3}$ F$E°_{3}$ = -$n_{2}$ F$E°_{2} - ( -[tex]n_{1}$ F$E°_{1}$ )

$\sf\huge\implies$$n_{3}$ $E°_{3}$ = $n_{2}$ $E°_{2}$ - $n_{1}$ $E_{1}$

$\sf\huge\implies$ $E°_{3}$ = $\color{red} {3}$ $x_{2}$ - $\color{red} {2}$ $x_{1}$