alleryStart learning →Nitrogen molecules of diameter 324 pm at 273 K and 1 atm have a mean free path close to what value?
A8 x 10^-10 m
B8 x 10^-4 m
C8 x 10^-6 m
D8 x 10^-8 m
Answer & Solution
Correct answer: D. 8 x 10^-8 m
Using the mean free path formula kT divided by root-2 pi d squared P gives about 0.8 x 10^-7 m, roughly 247 molecular diameters.
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