The binary diffusivity in gases at atmospheric conditions is about ___________________?
Correct answer: B. 10-1 cm2/sec
- A. 10-9 cm/sec
- B. 10-1 cm2/sec
- C. 10-3 sec/cm
- D. 10-4 cm2/sec2
Explanation
Gas molecules diffuse relatively rapidly, giving binary diffusivities of about 0.1 cm²/s at atmospheric pressure. The other choices either have incorrect units or are far too small.
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