where Kx is based on the overall driving force for the liquid phase, in mole/m2.s
and *Ax is the value of concentration in the liquid phase that would be in the
equilibrium with yAG. A relation between the overall coefficients and the individual
mass transfer film coefficients can be obtained when the equilibrium relation is
linear as Ai Ai y mx . The linear equilibrium condition can be obtained at the low
concentrations, where Henry’s law is applicable. Here the proportionality
constant m is defined as m= H/P. Utilizing the relationship, Ai Ai y mx , gas and
liquid phase concentrations can be related by