Q169
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
A.
10-5
B.
2 × 10-5
AnswerC.
4 × 10-5
D.
6 × 10-5
Answer: Option B
Solution
Answer: Option B
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