| 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
Correct Answer: A
Solution :
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.
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