Question

what is meant by diffusion? give one example of diffusion in gases

Answer 1

here is your answer mate

Diffusion Definition. Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration. The material that diffuses could be a solid, liquid or gas. ... An example of this is the way the noxious smell of ammonia gas spreads in air.

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Answer 2

Answer:

A diffusion is a process in science . Some particles are dissolved in a glass of water. At first, the particles are all near one top corner of the glass. If the particles randomly move around ("diffuse") in the water, they eventually become distributed randomly and uniformly from an area of high concentration to an area of low concentration, and organized (diffusion continues, but with no net flux).

Example: Perfume is sprayed in one part of a room, yet soon it diffuses so that you can smell it everywhere.