Activation energy of the mass diffusion coefficient

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Which of the following contribute to the activation energy (EA) of the mass diffusion coefficient (D)?

I. Bond breakage to move the atom from one position to the next.

II. Bond formation to move the atom from one position not the next.

III. Entropic penalty for creating a more random system.

IV. Bond strains associated with "pushing" atoms out of the way as an atom diffuses from one site to the next.

Only I

Only II

Only III

I, II, and IV

Both II and IV

Both II and III

Both I and II

Both I and IV.

Both I and III

All of the above: I, II, III, and IV

Reference no: EM132787326

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