Question

Adsorption is accompanied by:

• A. decrease in entropy of the system
• B. decrease in enthalpy of the system
• C. $T\Delta S$ for the process is negative
• D. all of the above

Answer 1

The correct option is D all of the above

Adsorption is the adhesion of liquid or gaseous molecules on to the surface of solid so the randomness (entropy) of the molecules decreases.
Hence option A is correct.