It is shown that a charging of the surface of a semiconductor by elect
rons can lead to an effective increase of the desorption, a new term i
n the kinetic equation and as a result the appearance of new regularit
ies - both in the adsorption isotherm and in the kinetic equation. We
point out the range of applications of the Langmuir and Henry theories
as well as mentioned references where one observed root dependences o
f the surface conduction on the pressure by experiment.