Adsorption

IMPORTANT

Adsorption: Overview

This Topic covers sub-topics such as Absorption, Adsorption, Adsorption Isotherms, Freundlich's Adsorption Isotherm, Adsorbent, Desorption, Physical Adsorption, Adsorbate, Sorption, Mechanism of Adsorption and, Chemical Adsorption

Important Questions on Adsorption

EASY
IMPORTANT

Physisorption arises because of

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IMPORTANT

Among physisorption and chemisorption, which type of a adsorption has a higher enthalpy of adsorption?

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Adsorption of gases on solid surface is generally exothermic because:

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Rate of physisorption increase with

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Rate of physisorption increase with:

HARD
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Predict the signs for entropy and enthalpy of adsorption.

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The type of absorption is highly specific and takes place at high temperature with unimolecular layer is

HARD
IMPORTANT

The correct statement for Freundlich adsorption isotherm is

MEDIUM
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For a linear plot of log x/m versus log p in a Freundlich adsorption isotherm, the correct statement is (K and n are constants)

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The thermodynamic condition for the process of adsorption is 

MEDIUM
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The variation of physical adsorption with temperature is shown by 

HARD
IMPORTANT

Which of the following curve is in accordance with Freundlich adsorption isotherm?

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Explain the effect of surface phenomenon on chemical adsoption.

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The extent of adsorption increases with the increase of surface area of the adsorbent.

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The extent of adsorption _____ (decreases/increases) with the increase of surface area of the adsorbent.

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What is the effect of surface area on physical adsorption?

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There is no effect of surface area on physical adsorption.

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There is an effect of surface area on physical adsorption.

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How does surface area affects physical adsorption?

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The enthalpy of chemical adsorption is _____ than the enthalpy of physical adsorption.