Question: Estimate the time needed for a glycine molecule (see Table 13.14) to diffuse a distance of 15 m in water at 20oC if its concentration

Estimate the time needed for a glycine molecule (see Table 13.14) to diffuse a distance of 15 μm in water at 20oC if its concentration varies over that distance from 1.00 mol/m3 to 0.40 mol/m3. Compare this “speed” to its rms (thermal) speed. The molecular mass of glycine is about 75u.

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