avastanleyy
16.07.2019 •
Chemistry
Nitrogen from a gaseous phase is to be diffused into pure iron at 700°c. if the surface concentration is maintained at 0.1 wt% n, what will be the concentration 1 mm from the surface after 10 h? the diffusion coefficient for nitrogen in iron at 700°c is 2.5 × 10−11 m2/s.
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