In industries titanium is hardened through diffusion of carbon. The co – McqOptions

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1.	In industries titanium is hardened through diffusion of carbon. The concentration of carbon at 1mm into the surface of the titanium slab is 0.25kg/m³ and at 3mm the concentration is 0.68kg/m³. The rate at which the carbon is entering into its surface is 1.27*10-9kg/m².s. calculate the value of diffusion coefficient of carbon.
A.	5.91*10<sup>-12</sup>
B.	5.91*10<sup>-10</sup>
C.	5.91*10<sup>-11</sup>
D.	5.91*10<sup>-13</sup>
Answer» B. 5.91*10<sup>-10</sup>

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