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The following statements relate to the adsorption of gases on a solid surface. Identify the incorrect statement among them,

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On adsorption, the residual forces on the surface are increased

On adsorption, decrease in surface energy appears as heat

Entropy of adsorption is negative

Enthaply of adsorption is negative

answer is A.

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Detailed Solution

As a result of the material being adsorbed covering the surface, which creates forces between the absorbate and adsorbent, the residual forces on the surface are reduced during adsorption.

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