Question

The standard emf of the galvanic cell involving 3 mole of electron in a redox reaction 0.59V. The equilibrium constant in the cell reaction is?

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Answer 1

$\dag\:\:{\rm{\red{\underline{Solution :-}}}}$

According to the question, the standard emf of a galvanic cell which involves 3 moles of electrons in its redox reaction is 0.59 volt.

$\implies$Ecell = 0.59 volt

$\implies$ $\rm\green{n = 3}$

The equilibrium constant for the reaction of the cell is given as follows:

$\rm \red{ \boxed{ \rm{ lnK = \frac{nFEcell}{RT} }}}$

Substituting the values, we get lnK = 68.9

$\implies$ $\rm \blue{Therefore, \: \: K = 10 {}^{30} }$

______________

$\rm {Therefore, \underline{ \: the \: \: equilibrium \: \: constant }}$

$\rm{\underline{for \: \: the \: \: reaction \: \: of \: \: the \: \: cell \: \: is \: \: 10 {}^{30}} .}$