What is the use of Freundlich adsorption isotherm plot?
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Solution
Freundlich Adsorption Isotherm
“Freundlich, in , gave an empirical relationship between the quantity of gas adsorbed by unit mass of solid adsorbent and pressure at a particular temperature.”
Equation given by Freundlich
The relationship can be expressed as follows:-
Here, is the mass of the gas adsorbed, and mass of the adsorbent at pressure .
and are constants that depend on the nature of the adsorbent and the gas at a particular temperature.
Use of Freundlich adsorption isotherm plot
It is utilized for the low-pressure adsorption of gases by solids.