The equation, NA = (DAB . Pt /RTZ) (y1 - y2) is for _______________________?
Correct answer: C. Steady state equimolar counter diffusion
- A. Steady state diffusion for stagnant case
- B. Fick's first law of diffusion
- C. Steady state equimolar counter diffusion
- D. Liquid M.T.C. by penetration theory
Explanation
For steady equimolar counterdiffusion, the molar flux is proportional to the mole-fraction difference and inversely proportional to the diffusion distance, giving the stated expression with DABPt/RTz. The stagnant-gas form contains an additional logarithmic concentration or mole-fraction term.
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