NEET | 2016Purification and characteristic of organic compounHard

Question

Which one of the following characteristics is associated with adsorption?

Options

A.

∆G is negative but ∆H and ∆S are positive

B.

∆G, ∆H and ∆S all are negative

C.

∆G and ∆H are negative but ∆S is positive

D.

∆G and ∆S are negative but ∆H is positive

Solution

∆H < 0 Adsorption process is exothermic
∆G < 0 Adsorption process is Feasible
∆S < 0 Adsorption process is accompanied of decrease in entropy.

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