Freundlich Adsorption Equation for Solutions x / m = kC 1 / n
where, C is the equilibrium concentration. On taking logarithm of the above equation, we have
langmuir Adsorption Isotherm
According to Langmuir, the degree of adsorption is directly ProPOrtional to e, i. e., the fraction of surface area occupied.
x / m α θ = kθ