Heat of adsorption of `O_2` on charcoal

Why is adsorption accompanied by the decrease of both enthalpy as well as entropy of the system? Which factors help in increasing the extent of physical adsorption of the gas on charcoal powder?

The heat of adsorption of physical adsorption is nearly

Compare the heat of adsorption for physical and chemical adsorption?

What do you understand by adsorption isotherm and adsorption isobar ? Explain Freundlich adsorption isotherm for the adsorption of gases on solids.

The amount of gas adsorbed on charcoal increases with :-

During the adsorption of krypton on activated charcoal at low temperature

Complete the statements by filling the blanks with the correct word from the bracket. Adsorption capacity of wood charcoal is increased by passing……….. [carbon dioxide/steam] over wood charcoal, at high temperatures.

A : In physical adsorption, heat of adsorption is low i.e., 20 - 40 kJ /mol. R : On increasing temperature, physical adsorption increases.

The heat of formation of H_(2)O(l) is -68.0 kcal, the heat of formation of H_(2)O(g) can logically be

In the reactions, S+ 3/2 O_2 to SO_3 + 2x kJ and SO_2 + 1/2 O_2 to SO_3 + y kJ Heat of formation of SO_2 is _________.