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5. Thermodynamics and thermochemistry — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry5. Thermodynamics and thermochemistry1 Mark
MCQ
Adsorption of gases on solid surface is generally exothermic because
  • A
    Enthalpy is positive
  • ✓
    Entropy decreases
  • C
    Entropy increases
  • D
    Free energy increase
✓

Answer

Correct option: B.
Entropy decreases
(b)Due to randomness of particles is reduced since entropy decreases.

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