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The correct statements pertaining to the...

The correct statements pertaining to the adsorption of a gas on a solid surface are
(i) Adsorption is always exothermic
(ii) Physisorption may transform into chemisorption at high temperature
(iii) Physisorption increases with increasing temperature but chemisorotion decrease with increasing temperature
(iv) Chemisorption is more exothermic than physisoption, however, it is very slow due to higher energy of activation

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The correct statement(s) pertaining to the adsorption of a gas on a solid surface is(are) (i) adsorption is always exothermic (ii) physisorption may transform into chemsisorption transform into chemisorption at high temperature (iii) physisorption increases with increasing temperature but chemisorption decreases with increasing temperature . (iv) chemisorption is more exothermic than physisorption , however it is very slow due to higher energy of activation.

Select the set having correct statements pertaining to the adsorption of a gas on a solid surface (1) physisortion may transform into chemisorption at high temperature (2) chemisorption is more exothermic than physisortion , however it is very slow due to higher energy of activation (3) Adsorption is always exothermic (4) Physiosorption increase with increasing temperature but chemisorption decreases with increasing temperature

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Does the adsorption of a gas on the surface of solid increases or decreases with rise in temperature ?

Adsorption is accompanied by the evolution of heat. Thus, according to Le Chatelier's principle the amount of surface adsorbed should (i) decrease with increase in temperature (ii) decrease with decrease in temperature (iii) increase with increase in temperature (iv) increase with decrease in temperature