Calculate the fraction \(f\) of occupied adsorption sites as a function of the gas density \(n\), the temperature \(T\), the binding energy \(\RDelta\), and physical constants. Since the surface is in...Calculate the fraction \(f\) of occupied adsorption sites as a function of the gas density \(n\), the temperature \(T\), the binding energy \(\RDelta\), and physical constants. Since the surface is in equilibrium with the gas, its fugacity \(z=\exp(\mu/\kT)\) and temperature \(T\) are the same as in the gas. At \(\tau=0\) the A state is preferred for each monomer, but when \(\tau\) exceeds \(\tau^*\), defined by the relation \(\vet\subA=\vet\subB\), the B state is preferred.
