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The two surfaces of a 5 mm thick plate of carbon...

This question belongs to Metallurgical Engineering Miscellaneous In Metallurgy
Miscellaneous in Metallurgy
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The two surfaces of a 5 mm thick plate of carbon steel are maintained at a carbon concentration of 104 mol. m-3 on one side and zero concentration on the other side. Taking the diffusion coefficient of carbon in austenite to be 10-11 m-2.s-1, the steady state flux (mol.m-3.s-1) through the thickness of the steel is

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Correct Answer: Option B
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