The standard emf of galvanic cell involving 3 moles of electrons in its redos reaction is 0.59V. The equilibrium constant for the reaction of the cell is

Options

A. `10^(25)`
B. `10^(20)`
C. `10^(15)`
D. `10^(30)`

Answer

D

Explanation

`nFE_("cell")^(@)=2.303TlogK`
`E_("cell")^(@)=(2.303RT)/(nF)log=(0.0591)/(n)logK`
`n=3`
`logK=(0.59xx3)/(0.0591)=29.9`
`K~~10^(30)`.