Mean free path, Avogadro's number

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• The mean free path for a gas, with molecular diameter d and number density n can be expressed as : Answer: 2. 1/√(2) nπ d² The standard result for the mean free path of a gas is λ=1/sqrt2 nπ d² It falls with number density n (more molecule... Mean free path, Avogadro's number 1 answer