A dsorption of a gas on the surface of solid is generally accompanied – InterviewSolution

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1.	A dsorption of a gas on the surface of solid is generally accompanied by decrease in entropy. Still it is a spontaneous process. Explain.
Answer» Solution :Adsorption is an EXOTHERMIC PROCESS, i.e., energy factor favfours the process. As `DELTAG=DeltaH-Delta S,` in adsorption, though `DeltaS` is -ve but `DeltaH` is also-ve and `DeltaH gt T DeltaS` in magnitude so that `DeltaG` is ve. Hence, the process is SPONTANEOUS.

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