Question: Nitrogen from a gaseous phase is to be diffused into pure iron at 700C. If the surface concentration is maintained at 0.16 wt% N, what

Nitrogen from a gaseous phase is to be diffused into pure

Nitrogen from a gaseous phase is to be diffused into pure iron at 700C. If the surface concentration is maintained at 0.16 wt\% N, what will be the concentration (in weight percent) 3.8mm from the surface after 7.9h ? The diffusion coefficient for nitrogen in iron at 700C is 3.31010m2/s

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