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QJEEM16Ch5602: JEE Main 2016 Chemistry - Class 12 JEEM16Ch5602 Solution: A particular adsorption process has the following…
A particular adsorption process has the following characteristics : (i) It arises due to van der Waals forces and (ii) it is reversible. Identify the correct statement that describes the above adsorption process :
Multiple Choice Options
- A Enthalpy of adsorption is greater than 100 kJ mol−1.
- B Energy of activation is low.
- C Adsorption is monolayer.
- D Adsorption increases with increase in temperature.
Step-by-Step Verified Solution
From the given characteristics, the adsorption is an example of physical adsorption.
(i) Physical adsorption is multimolecular layer.
(ii) It decreases with increase in temperature.
(iii) Enthalpy of adsorption is low 20–40 kJ mol−1 for physical adsorption.
(iv) Energy of activation is low because in this type of adsorption no chemical reaction takes place.