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(μ/\kT) and temperature T are the same as in the gas. At τ=0 the A state is preferred for each monomer, but when τ exceeds τ∗, defined by the relation \vet\subA=\vet\subB, the B state is preferred.