Yes, physical adsorption is non-specific in nature.
This type of adsorption is also known as physisorption. It is due to weak Van der Waals force between adsorbate and adsorbent.
- Physical forces cause this type of adsorption.
- Physisorption is a weak phenomenon.
- This adsorption is a multi-layered process.
- Physical adsorption is not specific and takes place all over the adsorbent.
- Surface area, temperature, pressure, nature of adsorbate effects physisorption.
- Energy for activation is low (20 – 40 kg/mol).