When considering the flux of particles (atoms, molecules, ions etc.) in a one-dimensional system caused by a concentration gradient, the flux can be expressed as ____________

When considering the flux of particles (atoms, molecules, ions etc.) in a one-dimensional system caused by a concentration gradient, the flux can be expressed as ____________ Correct Answer J = dm/(dt*A)

J = dm/dt*A = – D*(ΔC/∆x) Where J (mol/m2 s) is the flux, dm (mol) is the change in the amount of matter in small time dt (seconds), A (m2) is the area, D (m2/s) is the diffusion coefficient, C (mol/m3) is the concentration of the particles, and x (m) is the position parameter. The negative sign stems from the fact that diffusion occurs in the direction opposite to the increasing concentration gradient.
Bissoy MCQ

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