In Fe-Si-C alloys, why does carbon diffuse far more rapidly than the – McqOptions

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1.	In Fe-Si-C alloys, why does carbon diffuse far more rapidly than the substitutionally dissolved silicon?
A.	Because it is large in size
B.	Because it has more mass
C.	Because it is an interstitial solute
D.	Because it is more volatile
Answer» D. Because it is more volatile

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