What are the thermodynamic parameters that describe the adsorption of nitrobenzene and dinitrobenzene onto CSDAC?

Label:chem

Topic
Thermodynamic parameters provide insights into the spontaneity, endothermic or exothermic nature, and entropy changes associated with the adsorption process.
Answer
The adsorption of nitrobenzene and dinitrobenzene onto CSDAC is spontaneous, as indicated by negative ∆G0 values, which become more negative with increasing temperature. The process is endothermic, with positive ∆H0 values (8.15 kJ/mol for nitrobenzene and 28.23 kJ/mol for dinitrobenzene). The positive ∆S0 values (79.86 J/mol·K for nitrobenzene and 154.94 J/mol·K for dinitrobenzene) suggest an increase in randomness at the solid–liquid interface upon adsorption, indicating an entropically favorable process.
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