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What is the unit of diffusion flux “J” in the Fick’s law equation?

What is the unit of diffusion flux “J” in the Fick’s law equation? Correct Answer mol m−2 s−1

J is the “diffusion flux,” of which the dimension is amount of substance per unit area per unit time, so it is expressed in such units as mol m−2 s−1. J measures the amount of substance that will flow through a unit area during a unit time interval.

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