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KCET2011ChemistryThermodynamics (C)

During the adsorption of krypton on activated charcoal at low temperature

Options

  1. AH < 0 and S < 0
  2. BH>0 and S < 0
  3. CH>0 and S>0
  4. DH 0

Correct answer

A. H < 0 and S < 0

Step-by-step solution

During adsorption, heat is liberated hence H is negative (less than zero) and entropy decreases.

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