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