1.

The correct statement(s) pertiaining to the adsorption of a gas on a solid surface is (are)

Answer»

Adsorption is always exothermic
Physisorption may transform into chemisorption at high TEMPERATURE
Physisorption increases with INCREASING temperature but chemisorption DECREASES with increasing temperature
Chemisorption is more exothermic than physisorption, however it is very SLOW DUE to higher energy of activation.

Answer :A::B::D


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