Potential fields and barriers to diffusion in narrow cylindrical capillaries

Abstract

In this paper, the wall potential along the center line of narrow solid capillaries has been derived. The potential barriers at the open end of such capillaries have been studied in detail. The influence of these potential barriers on the diffusion coefficients and their dependence on temperature and capillary radius have been evaluated. The implications of these energy barriers in the clarification of low pressure hysteresis phenomena have been pointed out.

Keywords:

• Capillary Wall Potential
• Potential Barrier
• Diffusion Coefficient
• Hysteresis