JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Adsorption is accompanied by

(A) of the system being negative
(B)A decrease in enthalpy of the system
(C) for the process being negative
(D)All of the aboveCorrect

Answer: (D)

Solution

Since adsorption is exothermic, is negative, i.e. enthalpy decreases (B); since adsorbed gas molecules lose freedom of motion and become ordered, is negative (A);

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Question ID VK-144835