State the reason behind the followingThe diffusion coefficient for ca – McqOptions

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1.	State the reason behind the followingThe diffusion coefficient for carbon in fee-Fe at 1000 °C is 2.5 X 10-11 (m2s-1) at 0.15 wt% C, but it rises to 7.7 x 10-11 (m2s-1) in solutions containing 1.4 wt % C.
A.	Melting point of carbon
B.	C atom strain Fe lattice
C.	Melting point of Fe atom
D.	Shrinking of C atom
Answer» C. Melting point of Fe atom

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