Question:medium

According to Fick's First Law, the molecular diffusion flux depends on:

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Flux is always driven by a Gradient. Just as heat flux depends on a *Temperature Gradient* (Fourier's Law), mass flux depends on a *Concentration Gradient*.

Updated On: May 20, 2026

Difference in Temperature
Pressure Difference
Concentration Gradient
Difference in Concentration

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The Correct Option is C

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