Chemisorption
Involves the weak attractive interactions between adsorbent and adsorbate
Is irreversible in nature
Decreases with increase of temperature
Involves multilayer formation of adsorbent on adsorbate

Extent of adsorption of adsorbate from solution phase increases with …… .

Extent of adsorption of adsorbate from solution phase increases with …… .

The affinity between the adsorbent and the liquid is not a pre- requisite

The amount of gas adsorbed on charcoal increases with :-

Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at 25^(@)C . Identify correct one (a)The adsorption requires activation at 25^(@)C (b)The adsorption is accompanied by a decrease in enthalpy (c)The adsorption increases with increases of temperature (d)The adsorption is irreversible

For imbibition the parameter(s) which are required between the adsorbent and the liquid imbibed.

Which of the following increase(s) the activation of a solid adsorbent?

Adsorption is accompanied by the evolution of heat. Thus, according to Le Chatelier's principle the amount of surface adsorbed should (i) decrease with increase in temperature (ii) decrease with decrease in temperature (iii) increase with increase in temperature (iv) increase with decrease in temperature

Only the surface atoms in an adsorbent play an active role in adsorption. These atoms possess some residual force such as van der Waals forces and chemical forces. In the process of adsorption. Weak adsorbate is substituting by strong adsorbete. Activated charcoal used in the gas mask is already exposed to the atmospheric air, so gases and water vapours in air are adsorbed on its surface. When the mask is exposed to chlorine atmosphere, the gases are displaced by chlorine. In general, easily liquefiable gases such as CO_(2),NH_(3),Cl_(2), and SO_(2) are adsorbed to a greater extent than the elemental gases, e.g., H_(2),N_(2),O_(2), He, etc. Gas mask works on the principle of

Only the surface atoms in an adsorbent play an active role in adsorption. These atoms possess some residual force such as van der Waals forces and chemical forces. In the process of adsorption. Weak adsorbate is substituting by strong adsorbete. Activated charcoal used in the gas mask is already exposed to the atmospheric air, so gases and water vapours in air are adsorbed on its surface. When the mask is exposed to chlorine atmosphere, the gases are displaced by chlorine. In general, easily liquefiable gases such as CO_(2),NH_(3),Cl_(2), and SO_(2) are adsorbed to a greater extent than the elemental gases, e.g., H_(2),N_(2),O_(2), He, etc. In physical adsorption, the forces associated are