  In this paper, we propose to predict analytically the temperature of an
evaporating spherical droplet. To do so, we first review, from data in the
literature, the effect of temperature on the physical parameters involved in
cooling-induced evaporation, namely the saturating vapor pressure, the
diffusion coefficient of vapor in air, the liquid density, the enthalpy of
vaporization and the thermal conductivity of air. These data support a series
of approximations that allows us to derive an implicit equation for the liquid
temperature. We propose a quadratic approximation of the variation of the
saturating vapor concentration with temperature to obtain an explicit
prediction of the drop temperature. As a result, an analytical prediction of
the droplet lifetime including the cooling effect is proposed.
