Find the activated diffusivity of carbon if energy of activation is 6 kJ; the value of constant diffusivity is 2.5 sq.m/sec. (Hint: the value of exponential of (-6/RT) is 2.55)
(a) 6.375 sq.m/s
(b) 1.02 sq.m/s
(c) 15.3 sq.m/s
(d) 16.25 sq.m/s
The question was posed to me in examination.
This interesting question is from Molecular Diffusion in Solids in section Diffusion in Solids and Molecular Diffusion in Fluids of Mass Transfer