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Why is change in Enthalpy,change in entropy and change in Gibbs energy negative in process of adsorption

Why is change in Enthalpy,change in entropy and change in Gibbs energy negative in process of adsorption

Grade:12

1 Answers

Shubham Singh
199 Points
6 years ago
change in entropy is negative because there is decrease in randomness of adsorbate molecules.
change in enthalpy is negative because when molecules are adsorbed there is decrease in surface energy of adsorbent which appears as heat.
change in Gibbs energy is negative as  deltaG = deltaH – TdeltaS

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