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Get Answers to all your Questions
Which of the following statements is NOT true about physical adsorption?
Option: 1
It is reversible in nature
Option: 2
It occurs due to weak Van der Waals forces
Option: 3
It increases with an increase in temperature
Option: 4
It occurs at low pressure and high temperature
Answers (1)
Physical adsorption occurs due to weak Van der Waals forces between the adsorbate and adsorbent molecules. It is reversible in nature and occurs at low temperature and high pressure. However, with an increase in temperature, the kinetic energy of adsorbate molecules increases, making it difficult for them to get adsorbed on the adsorbent surface. Hence, physical adsorption decreases with an increase in temperature.
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