Adsorption of gases on solid surface is an exothermic eaction because – InterviewSolution

1.	Adsorption of gases on solid surface is an exothermic eaction because
Answer» FREE energy increases enthalpy is positive entropy increases enthalpy is negative. Solution :During adsorption, there is ALWAYS a decrease in residual forces of the surface i.e., there is decrease in surface energy which APPEARS as heat. Adsorption THEREFORE is invariably accompanied by evolution of heat i.e., it is an exothermic PROCESS.

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