Question
Write a mathematical expression showing relationship between the amount of solute adsorbed per unit mass of the solid adsorbent and the concentration of the solute in solution.
Solution
Answer:
where x is mass of the gas absorbedon mass m of the absorbent at pressure P
k and n are constant depends on the nature of adsorbent and gas at particular temperature.
Freundlich adsorption isotherm: Freundlich gave an
empirical relationship between the quantity of gas adsorbed by unit mass of solid adsorbent and pressure at a particular temperature. The relationship can be expressed by the following equation
where x is mass of the gas absorbedon mass m of the absorbent at pressure P
k and n are constant depends on the nature of adsorbent and gas at particular temperature.
