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## Main Question or Discussion Point

Good morning,

I'm trying to workout the time for an element to diffuse at set distance in microns.

I have the distance, the diffusion coefficient, just unsure which equation I actually use.

X= sqrt DT or the other one x= sqrt 2DT.

I can't seem to figure out when you use one and not the other.

Thanks in advance

James

I'm trying to workout the time for an element to diffuse at set distance in microns.

I have the distance, the diffusion coefficient, just unsure which equation I actually use.

X= sqrt DT or the other one x= sqrt 2DT.

I can't seem to figure out when you use one and not the other.

Thanks in advance

James

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