For which of the following reaction does the equilibrium constant depend on the units of concentration

Options

A. `NO_(g)hArr1/2N_(2(g))+1/2O_(2(g))`
B. `Zn_(s)+Cu+_((aq))^(2+)hArrCu_((s))+Zn_((aq))^(2+)`
C. `C_2H_5OH_((l)) + CH_3COOH_((l)) hArr CH_3COOC_2H_(5(l)) + H_2O_((I))` (Reaction carried in an inert solvent)
D. `COCl_(2(g)) hArr CO_((g)) + Cl_(2(g))`

Answer

D

Explanation

`Deltan=1` for this change
So the equilibrium constant depends on the unit of concentration.