Schmidt number and Lewis number for pure air at atmospheric conditions are respectively__________________?
Correct answer: A. < 1 and ≈ 1
- A. < 1 and ≈ 1
- B. 1 and 0
- C. > 1 and ≈ 1
- D. 0 and ≈ 1
Explanation
For air, the Schmidt number is approximately 0.7, hence less than one, while the Lewis number is close to unity because mass and thermal diffusivities are of similar magnitude.
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