ABSTRACT
Evaporation of water from water drops has been of interest for some time to some hydrologically oriented investigators and to atmospheric scientists. The theoretical approach of G. D. Kinzer and R. Gunn involved the calculation of equilibrium evaporation rates by two independent processes, one depending upon the laws of heat transfer and the other concerned with the transfer of water vapor outward from the drops. The primary purpose of the experimental investigation of Kinzer and Gunn was the measurement of the evaporation of water drops freely falling relative to the surrounding air. C. C. Snead and J. T. Zung made experimental studies of the effects of insoluble films on the rates of evaporation of charged droplets of water and ethylene glycol. Snead and Zung concluded that the experimental evidence indicated that the evaporation rates were always reduced by insoluble films on the droplets.
