Definition For Diffusion Of Gases

By use of a large cascade of many stages high separations can be achieved.

Definition for diffusion of gases. Gaseous diffusion is a technology used to produce enriched uranium by forcing gaseous uranium hexafluoride uf 6 through semipermeable membranes. Gaseous particles are in constant random motion. Diffusion is a natural and physical process which happens on its own without stirring or shaking the solutions. The molecules collide with each other and change the direction.

Definition of gaseous diffusion. First a mixture is necessarily involved inasmuch as a gas diffusing through itself makes no sense physically unless the molecules are in some way distinguishable from one another. Diffusion is faster at higher temperatures because the gas molecules have greater kinetic energy. The rate of this phenomenon movement is a function of the viscosity of the gas temperature and size of the particles.

The thermal motion of gas particles at above absolute zero temperature is called molecular diffusion. Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Gaseous particles tend to undergo diffusion because they have kinetic energy. Liquid and gases undergo diffusion as the molecules are able to move randomly.

Effusion refers to the movement of gas particles through a small hole. This produces a slight separation between the molecules containing uranium 235 235 u and uranium 238 238 u.