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A sheet of steel 1 . 5 m m thick has nitrogen atmospheres on both sides at 1 2 0 0 C and is permitted
A sheet of steel thick has nitrogen atmospheres on both sides at and is
permitted to achieve a steadystate diffusion condition. The diffusion coefficient for
nitrogen in steel at this temperature is and the diffusion flux is found to be
Also, it is known that the concentration of nitrogen in the steel at the high
pressure surface is How far into the sheet from this highpressure side will the
concentration be Assume a linear concentration profile.
a Write the relevant equation.
b Rearrange the equation to solve for the desired variable.
c Define the terms in the equation using numbers points
d How far into the sheet from this highpressure side will the concentration be
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