Physics, 27.06.2019 22:20, fjdkj

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200°c and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6x10^-11 m2/s, andthe diffusion flux is found to be 1.2 x10^-7 kg/m^2.s. also, it is known that the concentration of nitrogen in the steel at the high pressure surface is 4 kg/m^3. how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m^3

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Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200°c and is permitted to ac...