Question

Which of the following is less than zero during adsorptions?

• A. $\Delta G$
• B. $\Delta S$
• C. $\Delta H$
• D. All of these

Answer 1

Answer: (D)

All of these

Answer 2

Adsorption is a spontaneous, exothermic process with decreases in entropy, hence

$\Delta G = - ve,\Delta H = - ve$and $\Delta S = - ve.$