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Syllabus

Adsorption of gases on the solid surface is generally exothermic because. -

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Question

Adsorption of gases on the solid surface is generally exothermic because.

Options

  • Enthalpy is positive

  • Entropy is decrease

  • Entropy increase

  • Free energy increase

MCQ

Solution

Entropy is decrease

Explanation:

Because the molecules of the gas are adsorbed on the surface of the adsorbent and energy is released during attraction, entropy decreases.

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Adsorption Isotherms (Freundlich and Langmuir Adsorption Isotherm)
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