A 1-mm-thick BCC iron foil is used to separate a region of high nitrogen gas con
ID: 1843648 • Letter: A
Question
A 1-mm-thick BCC iron foil is used to separate a region of high nitrogen gas concentration of 0.1 at% from a region of low nitrogen gas concentration at 620 degree C. For the diffusion of nitrogen through BCC iron Q = 76.6 kJ/mol and D_0 = 0.0047 cm^2/s. For BCC iron, there are two atoms per unit cell with an axial length of 2.866 times 10^-10 m. If the flux of nitrogen through the foil is 10^12 atoms/cm^2.s, what is the difference of nitrogen concentration between the high concentration region and the low concentration region? (Express your answer to three significant figures.) C_high - C_low = at%Explanation / Answer
The answer of the following question is as follows
The difference of nitrogen concentration between the high concentration region and the low concentration region is
42%
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