90 Решение задачки по химии №09 008

The diffusion coefficient of iron in its oxides is expressed by the following equations:
DFe→FeO = 0.118 e-14850/RT cm2/s;
DFe→Fe3O4= 5.2 e-27500/RT cm2/s;
DFe→Fe2O3 = 4.0*105 e-56000/RT cm2/s.

Determine the diffusion coefficient (DFe) of iron in its oxides at t=600, 700, 800, 1000 C. Draw a graph and draw appropriate conclusions. (R=8.314 J/mol)

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