Study the two experimentally determined isotherms below, then answer the questio

Question

Study the two experimentally determined isotherms below, then answer the questions following them. (a) Which of the two isotherms indicates that the maximum adsorption occurs when a monolayer of adsorbate molecules is formed? Which isotherm is typical of multi-layer adsorption? (b) Which of the two isotherms could best be described by the Langmuir isotherm? (c) Which theoretical isotherm would most likely describe isotherm (ii) above? (d) Can you tell from the apparent adsorption isotherm whether chemisorption or physisorption is occurring?

Explanation / Answer

3.

A) isotherm-II deals with mono layer adsorption while isotherm-I deal with multilayered adsorption.

B) isotherm-I described by freundlich adsorption isotherm while II described by Langmuir adsorption isotherm.

C) Langmuir adsorption isotherm.

D) isotherm-I:- physical adsorption

isotherm-II:- chemical adsorption

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