Essential Chemistry for IGCSE - Particles And Purification (Section 10 - No. 47)
What happens to the particles of a gas as they diffuse?
They move from an area of low concentration to an area of high concentration.
They remain in the same place.
They spread out and mix with other particles.
They stop moving.
Explanation
During diffusion, particles spread out and mix due to their constant random motion.
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