Adsorption chemical potential
= Adsorption chemical potential
{title2=$\mu_{\rm ads}=k_{\rm B}T\ln[\theta/(1-\theta)]-k_{\rm B}T\ln z$}
The <chemical potential> of an ideal single-occupancy <lattice gas> with occupied-site internal <partition function> $z$ and <surface coverage> $\theta$. The ratio $\theta/(1-\theta)$ accounts for the entropy of distributing particles among occupied and vacant <adsorption sites>.