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Extent of physisorption of a gas increases with ___________.
(i) increase in temperature.
(ii) the decrease in temperature.
(iii) the decrease in surface area of the adsorbent.
(iv) the decrease in strength of van der Waals forces.
Answers (1)
The answer is the option (ii).
Physisorption of a gas increases with decrease in temperature. This is because, weak van der Waals forces hold the physisorption particles to the surface making them difficult to exist at higher temperature.
View full answer
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