Cloud‐Chamber Droplet Growth and Evaporation

A droplet‐growth law used by Fletcher and others to study growth of cloud droplets is modified for cloud‐chamber conditions. Growth and evaporation of cloud‐chamber droplets are investigated using the Becker—Doring nucleation rate law, following the step‐by‐step growth of droplets, and correcting nominal supersaturation obtained from the adiabatic process equation for vapor depletion. Drop‐count and drop‐size results obtained are in reasonable agreement with observations.