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Freundlich isotherm explains the behavio...

Freundlich isotherm explains the behaviour of
adsorption

A

Room temperature

B

Low pressure

C

High temperature

D

High pressure

Text Solution

Verified by Experts

The correct Answer is:
D
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Which of the following statements are correct with respect to adsorption of gases on a solid ? (i) The ectent of adsorption is equal to KP^(n) according to Freundlich isotherm. (ii) The extent of adsorption is equal to KP^(1//n) according to Frendlich isotherm. (iii) The extent of adsorption is equal to (1+bP)/aP according to Langmuir isotherm. (iv) The extent of adsorption is equal to aP/(1+bP) according to Langmuir isotherm. (v) Freundlich adsorption isotherm fails at low temperature.

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Freundlich adsorption isotherm is

Freundlich adsorption isotherm is obeyed by the adsorption where the adsorbate forms a multimolecular layer on the surface of adsorbent .In such cases, the degree of adsorption varies linearly with pressure but at high pressure, it becomes independent of pressure The relation of Freundlich adsorption isotherm is : (x)/(m)=kP^(1//n) where ,K and n are constants. Langmuir adsorption isotherm is obeyed by the adsorption where the adsorbate forms only a unimolecular adsorbed layer. The mathematical relation of Langmuir isotherm is : (x)/(m) = (aP)/(1+bP) Freundlich adsorption isotherm is valid for chemisorption . (a) True (b) False