The absorption of solute A from a mixture is done in a wetted wall column by a solvent at $1$ atm. and $25\backslash$deg C$.$ The value of mass transfer coefficient is $9\mathrm{.}0\backslash$times $10*$ m$/$s$.$ At a point, the mole fraction of A in the liquid gas interface is $2\mathrm{.}0\backslash$times $105$ in the liquid phase. Partial pressure of A in the gas phase is $0\mathrm{.}08$ atm. Henry's law relation is