Which thermodynamic parameter of the system becomes exactly zero when the rate of gas adsorption equ — Surface Chemistry Chemistry Question

💡 Solution & Explanation

When the rate of adsorption equals the rate of desorption, the system has achieved a state of dynamic equilibrium. According to thermodynamics, at the point of equilibrium, the change in Gibbs free energy ($\Delta G$) for the process is exactly zero, fulfilling the condition $\Delta H = T\Delta S$.