Which one of the following gases has the lowest density under room conditions?
Correct answer: A. Neon
- A. Neon
- B. Nitrogen
- C. Oxygen
- D. Fluorine
Explanation
Molar Mass: Approximately 20.18 g/mol.Density: Neon is a noble gas with a low molar mass, resulting in a low density compared to the other options. At room temperature and pressure, its density is around 0.9002 g/L, making it the least dense of the four gases listed.
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About Kinetic Molecular Theory
Kinetic molecular theory explains gases as rapidly moving particles separated by large distances, with negligible volume and negligible intermolecular attraction in the ideal model. It relates temperature to average kinetic energy and explains gas pressure, Boyle's and Charles's laws, diffusion, effusion and the conditions under which real gases deviate from ideal behavior.
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