Which of the following gas molecule has the longest mean free path at the same pressure and temperature? | States of Matter and Gaseous State — Chem-Mantra | Chem-Mantra

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States of Matter and Gaseous StatemediumMCQ SINGLE

Question

Which of the following gas molecule has the longest mean free path at the same pressure and temperature?

Answer: A

💡 Solution & Explanation

Mean free path is inversely proportional to collision cross-section. H2 is smallest. Therefore, correct answer is A.

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