Engineering
Chemistry
Adsorption
Freundlich Adsorption
Question

A gas undergoes physical adsorption on a surface and follows the given Freundlich adsorption isotherm equation

          xm=kp0.5

Adsorption of the gas increases with :

Decrease in p and decrease in T

Decrease in p and increase in T

Increase in p and increase in T

Increase in p and decrease in T

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Solution

Increase in pressure leads to the increase in adsorption capacity and the physical adsorption is an exothermic process with the increase in temperature adsorption decrease.