At what temperature (in Kelvin) will the diffusion coefficient for the diffusion of species A in metal B have a value of 6.48 × 10-15 m2/s, assuming values of 4.0 × 10-5 m2/s and 230,000 J/mol for D0 and Qd , respectively?

= 1227.9K

Explanation:

Given that,

D₀ = 4.0 x 10⁻⁵ m²/s,

Qd =  230,000 J/mol,

D = 6.48 x 10⁻¹⁵ m²/s

Gas constant R = 8.31 J/mol-K

T =

  =

  =

  = 1227.93K

  ≅1227.9K

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