Аңдатпа
An experimental study of the diusion-gravitational convection transition boundary in an ArN2 binarysystem at dierent pressures and a constant temperature gradient is performed.It is shown that the diusion is replaced by the gravitational convection at a pressure p ≈ 0.5 MPa.In terms of the stability theory, a perturbation boundary line is determined, dividing the Rayleigh numbers plane into the regions of the diusion and the convective mass transfer.The experimental data agree well with the theoretical values.