Which of the following is used to calculate the film thickness in a mass transfer process?
Everyday Science / Physics — Multiple-choice practice
- A. Reynolds number
- B. Schmidt number
- C. Sherwood number
- D. Prandtl number
Correct answer
Schmidt number
Explanation
Explanation - The Schmidt number (Sc) is the ratio of momentum diffusivity (viscosity) to mass diffusivity. - It is used to estimate film thickness in mass transfer operations like absorption and distillation. - Formula : Sc = μ / (ρD)
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