“…Wilhelm (19) recomputed all available data in the literature assuming an evaporation coefficient of unity, and arrived at a plot which implied that the condensation coefficient rapidly decreased from unity at isothermal equilibrium to a very low value at high thermal driving forces ( Figure 21). The condensation coefficients reported in Table 5 are Finally, this work has clearly demonstrated the feasibility of using radioactive tracers for the evaluation of evaporation and conden sation coefficients for both isothermal and nonisothermal conditions.…”