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Chemistry · PYQ NEET UG 2016(1)

हिन्दी

Which one of the following characteristics is associated with adsorption?

  1. A
    \( \Delta G \), \( \Delta H \) and \( \Delta S \) all are negative.
  2. B
    \( \Delta G \) and \( \Delta S \) are negative, \( \Delta H \) is positive.
  3. C
    \( \Delta G \) is negative but \( \Delta H \) and \( \Delta S \) are positive.
  4. D
    \( \Delta G \) and \( \Delta H \) are negative, \( \Delta S \) is positive.
View Answer & Solution

Correct answer · Option A

\( \Delta G \), \( \Delta H \) and \( \Delta S \) all are negative.

Explanation

Adsorption is a spontaneous process (\( \Delta G < 0 \)), exothermic (\( \Delta H < 0 \)), and decreases the randomness of molecules (\( \Delta S < 0 \)).
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