Question

Q.2 Answer the following.
i) Write an equation for Freundlich adsorption isotherm.​

Answer 1

Answer:

Explanation:Freundlich isotherm explains the behaviour of adsorption accurately. In the equation – x/m = k.P1/n (n > 1), 'k' and 'n' are constants that depend on the nature of the adsorbent and the gas at a particular temperature.

Answer 2

Write an equation for Freundlich adsorption isotherm.​

• The relationship between the volume of gas adsorbed on a solid surface and the gas pressure is known as the Freundlich adsorption isotherm. The relationship between a solute's concentration on a solid's surface and its concentration in liquid form is the same. The Freundlich adsorption isotherm provides an empirical link between pressure at a given temperature and the amount of gas adsorbed by a unit mass of solid adsorbent.
• It is evident from the plot that the maximum valve is reached at PS pressure. The saturation pressure is denoted by Ps.
• The main distinction between the Freundlich and Langmuir adsorption isotherms is that the former is empirical, while the latter is theoretical.
• The basic technique we have for predicting a substance's adsorption capacity is the adsorption isotherm. The fluctuation in the amount of adsorption (x/m) when pressure (P) was mathematically provided by Freundlich. The following conclusions are simple to draw: I The graph is practically straight at low pressure, indicating that x/m is directly proportional to pressure.

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