Compare the enthalpy of chemical adsorption with physical adsorption.
(N/A) The enthalpy of adsorption for physical adsorption (physisorption) is low,typically in the range of $20-40 \ kJ \ mol^{-1}$.
This is because the forces involved are weak van der Waals forces.
In contrast,the enthalpy of adsorption for chemical adsorption (chemisorption) is high,typically in the range of $80-240 \ kJ \ mol^{-1}$.
This is because strong chemical bonds are formed between the adsorbate and the adsorbent.
This is because the forces involved are weak van der Waals forces.
In contrast,the enthalpy of adsorption for chemical adsorption (chemisorption) is high,typically in the range of $80-240 \ kJ \ mol^{-1}$.
This is because strong chemical bonds are formed between the adsorbate and the adsorbent.
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