• Why does physiosorption deceases with the increase of temperature?​​

Dear Student,

In adsorption, an equilibrium is established between the gas in contact with the solid and the adsorbed gas at any temperature and pressure. Adsorption and desorption of gas molecule take up simultaneously setting up dynamic equilibrium. Since physisorption is an exothermic process, therefore, according to Le Chatelier's principle on increasing temperature, the equilibrium shifts more towards backside i.e. desorption will occur.  Hence. physisorption decreases with increasing temperature. 

  • 1
Physiosorption is an exothermic process, so it decreases with the increase in temperature according to Le chatelier's principle.
  • 2
Physisoption decreases with increase in temperature because adsorption is an exothermic process and there is weak vander Waal forces of attraction between adsorbet and adsorbent.

  • 4
Physiosorption is an exothermic process. So as temperature changes it also changes
  • 2
exothermic rn is favorable at low temp.
  • 0
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