Question

Physisorption is reversible while chemisorption is irrevrrsible .Why ?

Answer 1

Physisorption- The process isreversible i.e. desorption of the gas occurs by increasing the temperature or decreasing the pressure. It takes place by the help of non covalent attraction between adsorbate and adsorbent making the processreversible. Chemisorption - The process is irreversible.

Answer 2

Answer:

In physisorption the molecules are held together by a weak vanderwaal's forces so it is reversible in nature while in chemisorption the molecule are held together by chemical bond hence they are irreversible in nature