During the process of adsorption,

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(B) Adsorption is a spontaneous process,which means the change in Gibbs free energy $(\Delta G)$ must be negative $(\Delta G < 0)$.According to the Gi

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$\Delta H - T \cdot \Delta S$ is negative

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(B) Adsorption is a spontaneous process,which means the change in Gibbs free energy $(\Delta G)$ must be negative $(\Delta G According to the Gibbs-Helmholtz equation,$\Delta G = \Delta H - T \cdot \Delta S$.Since adsorption is an exothermic process,the enthalpy change $(\Delta H)$ is negative $(\Delta H Also,during adsorption,the randomness of the gas molecules decreases,so the entropy change $(\Delta S)$ is negative $(\Delta S For the process to be spontaneous,the term $(\Delta H - T \cdot \Delta S)$ must be negative.

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