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Material science is the class 0 0.025 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 er =) 0 0.0282 0.0564 0.1125 0.1680 0.2227

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0 0.025 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 er =) 0 0.0282 0.0564 0.1125 0.1680 0.2227 0.2763 0.3286 0.3794 0.4284 0.4755 0.5205 0.55 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.0 1.1 1.2 erfo) 0.5633 0.6039 0.6420 0.6778 0.7112 0.7421 0.7707 0.7970 0.8209 0.8427 0.8802 0.9103 1.3 1.4 1.5 1.6 1.7 18 1.9 2.0 22 2.4 2.6 2.8 eris) 0.9340 0.9523 0.9661 0.9763 0.9838 0.9891 0.9928 0.9953 0.9981 0.9993 0.9998 0.9999 x C1-C =1-erf C-Co 21Dt Nitrogen from a gaseous phase is to be diffused into pure iron at 700C. If the surface concentration is maintained at 0.15 wt% N, what will be the concentration 5 mm from the surface after 5 days? The diffusion coefficient for nitrogen in iron at 700C is 2.5x10-11 m/s. This problem has a lot of intermediate steps. To ensure best partial credit, be clear and methodical in your work: show all your units in your calculations, clearly label your variables with consistent subscripts, show your linear interpolation clearly

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