• # question_answer Statement I All the values $\Delta G,\Delta H,\Delta S$must have negative value for adsorption. Statement II Adsorption is a spontaneous as well as exothermic process in which randomness decreases. The decrease in randomness is due to increase in attraction between adsorbate and adsorbent. A)  Both Statement I and Statement II are true and the Statement II is the correct explanation of the Statement I B)  Both Statement I and Statement II are true but the Statement II is not the correct explanation of the Statement I C)  Statement I is true but statement II is false D)  Both Statement I and Statement II are false

For adsorption, $\Delta G=-ve$i. e., spontaneous process $\Delta H=-ve$i. e., exothermic process $\Delta S=-ve$i.e., attraction between adsorbate and adsorbent increases.