Abstract
The sorption of water vapour on borosilicate glass and evaporated oil films of Lion A, Octoil 5, Apiezon C and Myvane was studied in the pressure region 10-5 Torr. The sorption is includes at least two phenomena, the activated adsorption and the diffusion. The rate of activated adsorption decreases exponentially with the increase of the amount of sorption. The activation energy of diffusion at 2-3-320°K is 7-11 Kcal/mole, and the diffusion constant is ca 10-18cm2/sec. A part of the sorbed. molecules desorbes by the evacuation at room temperature, and the rate of desorption is given by the equation of the second order reaction.
