The unit of cell constant is -

Explanation

`E_(cell)^(Theta) = 0.236 V `
`DeltaG^(Theta) = -n FE^(Theta)`
n = 2 F = 96500 C
`Delta G^(Theta) = 2 xx (96500 C) xx (0.236 V)`
`= -45548 J or = -45.55` kJ
`Delta G^(Theta) = - 2.303 RT log K_(c)`
or log `K_(c) = (Delta G)/(2.303 RT) = - (-45.55)/(2.303 xx 8.314 xx 10^(-3) xx 298) = 7.983`
`K_(c)` = antilog (7.893) = `9.62 xx 10^(7)`