Asked by Jon

Approximately how long does it take for an oxygen molecule to diffuse across the interior of a cell that is 230 ì m in diameter?

Answers

Answered by drwls
Without knowing the diffusion coefficient, I have no idea.

You might consider this a "random walk" problem. The product of mean free path and molecular velocity is approximately the diffusion coefficient, D.

The average distance randomly walked is, as I recall,
sqrt (pi*D*t)
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