wyann
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Do diffusion of particles ever stop completely?
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Ddraigdwr2
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Diffusion doesn't stop completely; the language used is referring to the net movement of molecules. Even if the net movement is zero, there is still a dynamic equilibrium and therefore molecules still moving across the membrane.

However, I am assuming that at absolute zero (0K or -273oC), when there is no movement of molecules, that diffusion would stop altogether.

Hope this helps
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