To further explore the thermodynamics of the adsorption process, the PMF is decomposed into its enthalpic and entropic terms. Although strictly we are computing the Helmholtz free energy in the NVT ensemble used in the production runs, it can be assumed equivalent to the Gibbs free energy if one neglects the pressure-volume contribution. According to classical thermodynamics, the entropic term can be calculated from the temperature dependence of the free energy profile, assuming that enthalpy and entropy do not change over a small temperature range, giving: