Effectiveness factor of a catalyst pellet is a measure of the _________________ resistance?
Correct answer: A. Pore diffusion
- A. Pore diffusion
- B. Gas film
- C. Chemical reaction
- D. None of these
Explanation
The effectiveness factor compares the actual pellet reaction rate with the rate if internal diffusion caused no limitation, so it indicates pore or intraparticle diffusion resistance. Gas-film resistance is an external mass-transfer effect.
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