Q. Which characteristic of adsorption is wrong?
A) Physical adsorption in general decreases with temperature
B) Physical adsorption in general increases with temperature
C) Physical adsorption is a reversible process
D) Adsorption is limited to the surface only
Explanation
(b)
Physical adsorption is non-directional, reversible, multilayers exothermic process where adsorbent molecules are held on surface of adsorbent by physical forces such as van der Waals’ forces.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.