Mass and energy flux rates on the surface of an evaporating liquid

A general particle distribution function over potential energies has been obtained. It describes well both an equilibrium system and an evaporating liquid. Near the evaporating surface itself, the distribution function is corrected to take into account the particles escape. Using the obtained distribution function over potential energies, the mass and energy fluxes the surface of the evaporating liquid are calculated. The results of the analytical expressions are compared with numerical simulation; the coincidence is sufficiently good.