Question

A particular examination process has the following characteristics.
(i) It arises due to Vander Waal's forces
(ii) It is reversible
Identify the correct statement that describes the above other option process:

• A. Adsorption is monolayer.
• B. Adsorption increases with increase in temperature.
• C. Enthalpy of adsorption is greater than $100kJmo{l}^{-1}$.
• D. Energy of activation is low.

Answer 1

The correct option is D Energy of activation is low.

Very low activation energy is required in physical adsorption. Hence option $d$ is the answer.