Types of Adsorption: Depending on the type of attractions
between adsorbate and adsorbent, the adsorption can be divided into two
types.
Forces of attraction exist between adsorbate and adsorbent. These
forces of attraction can be due to Vanderwaal forces of attraction which are
weak forces or due to chemical bond which are strong forces of attraction. On
the basis of type of forces of attraction existing between adsorbate and
adsorbent, adsorption can be classified into two types: Physical Adsorption or
Chemical Adsorption.