Which of the following plays an important role in problems of simultaneous heat and mass transfer ?
Correct answer: A. Lewis number
- A. Lewis number
- B. Schmidt number
- C. Prandtl number
- D. Sherwood number
Explanation
The Lewis number compares thermal diffusivity with mass diffusivity and is central when heat and mass transfer occur together. Schmidt and Sherwood numbers mainly characterize mass-transfer behaviour, while Prandtl number concerns heat transfer alone.
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