Which of the following statements of correct for the spontaneous adsoption of a gas?A. `DeltaS` is negative and therefore, `DeltaH` should be highly positive.B. `DeltaS` is negative and therefore, `DeltaH` should be highly negativeC. `DeltaS` is positve and therefore, `DeltaH` should be negativeD. `DeltaS` is positive and therefore, `DeltaH` should also be highly positive

Which of the following statements of correct for the spontaneous adsop

1.	Which of the following statements of correct for the spontaneous adsoption of a gas?A. `DeltaS` is negative and therefore, `DeltaH` should be highly positive.B. `DeltaS` is negative and therefore, `DeltaH` should be highly negativeC. `DeltaS` is positve and therefore, `DeltaH` should be negativeD. `DeltaS` is positive and therefore, `DeltaH` should also be highly positive
Answer» Correct Answer - B `DeltaS` [Change in entropy] and `DeltaH` [Change in enthalpy] are related by the equation `DeltaG=DeltaH-TDeltaS` [Here, `DeltaG`=Change in Gibbs free energy] For adsorption of a gas , `DeltaS` is negative because randomness decreases. Thus, in order in order to make `DeltaG` negative [for spontaneous reaction] , `DeltaH ` must be highly negative . Hence for the adsorption of a gas , if `DeltaS` is negative , therefore, `DeltaH` should be highly negative.

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