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Adsorption of a gas on the surface of solid is generally accompanied by decrease in entropy. Still it is a spontaneous process. Explain. |
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Answer» Solution :WHETHER or not, a process occurs, is decided by `DeltaG ` value which should be NEGATIVE. In ADSORPTION, `DeltaS` is -ve, but `DeltaH ` is also -ve because it is an EXOTHERMIC process. `DeltaG=DeltaH-TDeltaS` The NET value of `DeltaG` is negative. Hence, it is a spontaneous process. |
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