a) Define diffusion. (b) State two applications of electrical conduction through gases.
PHYSICS
WAEC 2009
a) Define diffusion.
(b) Statetwo applications of electrical conduction through gases.
Explanation
(a) Diffusion is the process by which substances mix (intimately) with one another due to the random motion of their molecules.
(b) Applications of electrical conduction through gases include:.
- In advertising industry/Neon signs
- In lighting/fluorescent tubes
- Identification of gases
- Cathode ray oscilloscope/T.V. tubes
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