Question

Which of the following is/are true for enhalpy of adsorption?

• A. It is amount of the heat released when 1 mole of an adsorbate gets adsorbed on a particular adsorbent at adsorption equilibrium.
• B. It depends on the nature of adsorbent.
• C. It depends on the nature of adsorbate.
• D. All of the above.

Answer 1

The correct option is D All of the above.

Enthalpy of Adsorption $\left(\Delta H_{\text{adsorption}}\right)$
It is amount of the heat released when 1 mole of an adsorbate gets adsorbed on a particular adsorbent at adsorption equilibrium.

It depends on the nature of both adsorbent and adsorbate.

Adsorbate:The molecular species or substance, which concentrates or accumulates at the surface.

Adsorbent: The material on the surface of which the adsorption takes place.