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Which of the following statement(s) is (are) correct about surface properties:

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Adsorption always leads to a decrease in enthalpy and increase in entropy of the system

Adsorption decreases the surface energy

The easily liquefiable gases adsorb more on solid

Greater the surface area per unit mass of the adsorbent, the greater is its capacity of adsorption.

answer is B, C, D.

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Detailed Solution

In adsorption process both $Δ H and Δ S$ is negative
Adsorption involve decrease in surface energy
Adsorption capacity increases with increase in surface area per unit mass

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