Essential Chemistry for IGCSE - Particles And Purification (Section 6 - No. 23)
What does the term 'diffusion' describe?
The change of state from solid to liquid.
The movement of particles from an area of high concentration to low concentration.
The process of heating a substance to its boiling point.
The cooling of a gas to form a liquid.
Explanation
Diffusion is the process where particles spread out from an area of high concentration to an area of low concentration.
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