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Diffusion coefficient of B-atom is given as 2.5m2/s and L value is given as 2m, calculate the relaxation time?

Diffusion coefficient of B-atom is given as 2.5m2/s and L value is given as 2m, calculate the relaxation time? Correct Answer 0.161

The relaxation time can be calculated using the formula = L2/(π2*D), the amplitude of the concentration profile decreases exponentially with time and after a sufficiently long time approaches zero and this rate is determined by using the relaxation time.

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