Extent of physisorption of a gas increases with
(i) Increase in temperature.
(ii) Decrease in temperature.
(iii) Decrease in surface area of adsorbent.
(iv) Decrease in strength of van der waals forces
Extent of physisorption of a gas increases with
(i) Increase in temperature.
(ii) Decrease in temperature.
(iii) Decrease in surface area of adsorbent.
(iv) Decrease in strength of van der waals forces
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1 Answer
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This is a Multiple Choice Type Questions as classified in NCERT Exemplar
Ans: Correct option is (ii)
As the process of adsorption is an exothermic one; physical adsorption occurs readily at low temperature and decreases with an increase in the temperature as equilibrium shifts in the backward direction. This is known as Le-Chatelier's principle, hence the correct option is (ii).
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