CUET · CHEMISTRY · PYQ PAPER 2023
Answer the question on the basis of passage given below :
Adsorption is the phenomenon of attracting and retaining the molecules of a substance on the surface of a solid resulting into a higher concentration on the surface than in the bulk. The substance adsorbed is known as adsorbate and the substance on which adsorption takes place is called adsorbent. In physisorption adsorbate is held to the adsorbent by weak van der Waals forces and in chemisorption by strong chemical bond.
The process of absorption is accompanied by
- A Increase in entropy
- B Decrease in entropy
- C Increase in enthalpy
- D Increase in Gibbs free energy
Answer & Solution
Correct Answer
(B) Decrease in entropy
Step-by-step Solution
Detailed explanation
Decrease in entropy
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