Which of the following is/are true regarding absorption and adsorption?
Absorption | Adsorption |
The substance is uniformly distributed throughout the bulk of the solid. | The substance is concentrated only at the surface and does not penetrate through the surface to the bulk of the adsorbent. |
The concentration is uniform throughout the bulk of the material. | The concentration of the adsorbate increases only at the surface of the adsorbent |