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A sheet of steel 1.5 mm thick has nitrogen atmosphere on both sides at 1200C and is permitted to achieve a steady-state diffusion condition. The
A sheet of steel 1.5 mm thick has nitrogen atmosphere on both sides at 1200C and is permitted to achieve a steady-state diffusion condition. The diffusion coefficient for nitrogen in steel at this temperature is 6 x 10 11 m/s, and the diffusion flux is found to be 1.2 x 10 kg/m-s. Also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m. How far into the sheet from this high-pressure side will the concentration be 2.0 kg/m? Assume a linear concentration profile.
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