1.

Which one of the following characteristic is associated with adsorption ?

Answer»

`DeltaG, DeltaH and DeltaS` all are NEGATIVE.
`DeltaG and DeltaH` are negative but `DeltaS` is POSITIVE
`DeltaG` and `DeltaS` are negative but `DeltaH` is positive.
`DeltaG` is negative but `DeltaH and DeltaS` are positive. 

Solution :`DeltaG, DeltaH and DeltaS` all are negative.
Adsorption is AUTOMATIC process. It release ENERGY. So decreases Antropy.
`therefore DeltaH, DeltaS, DeltaG` All `- ve`


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