Metallurgical Engineering > GATE 2022 > Diffusion
The concentration C of a solute (in units of atoms-mm3) in a solid along x direction (for x>0) follows the expression
C=a1x2+a2x
where x is in mm, a1 and a2 are in units of atoms-mm-5 and atoms-mm-4, respectively. Assuming a1=a2=1, the magnitude of flux at x=2 mm is _______ x10-3 atoms-mm-2⋅s-1 (answer rounded off to the nearest integer).
Given: diffusion coefficient of the solute in the solid is 3x10-3 mm2⋅s-1.
C=a1x2+a2x
where x is in mm, a1 and a2 are in units of atoms-mm-5 and atoms-mm-4, respectively. Assuming a1=a2=1, the magnitude of flux at x=2 mm is _______ x10-3 atoms-mm-2⋅s-1 (answer rounded off to the nearest integer).
Given: diffusion coefficient of the solute in the solid is 3x10-3 mm2⋅s-1.
Correct : 15
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