A general expression is derived for the vapor pressure of a charged drop situated at the center of a spherical container with perfectly reflecting wall. It is assumed that the liquid is conducting, the medium devoid of external fields of force and that the gaseous phase comprises both neutral and charged molecules. The vapor pressure in the case where the radius of the container is close to that of the drop was evaluated after solving the equation for the distribution of the charged molecules near the surface.It was shown that, in general, the vapor pressure tends to infinity with increasing distance from the droplet, thus rendering impossible the attainment of a thermodynamic equilibrium in the atmosphere. The vapor pressure of a charged mercury droplet is given as a numerical example.
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