Definition of physical adsorption process is intermolecular bond(it' s mostly Van der Waals forces) But if the bonding that is hydrogen bond Can be called as physical adsorption process ?
Hello ... Physical adsorption is a weak adsorption as a result of the bonding strength (van der Waals forces or the hydrogen bond) between molecules, ions, or atoms adsorbed on the adsorbent surface, and is characterized by an enthalpy of less than 40 kJ/mole ..GOOD LUCK@
Physical adsorption (physisorption) is performed at low temperatures by a weak bonding force called Van der Waals. Since H-bonds are usually much stronger than Van der Waals interactions, I prefer to regard adsorption with H-bonds as strong physisorption.
Moreover, physisorption is normally attributed to London forces, dipole forces, and hydrogen bonding, and chemisorption is normally attributed to covalent bonding.
We can deal with hydrogen bonding in many different adsorbate-adsorbent systems, so there is no clear answer here.