Which of the following gases possess the maximum root mean square velocity at a given temperature?
Correct answer: A. Hydrogen
- A. Hydrogen
- B. Oxygen
- C. Nitrogen
- D. Options (b), (c), and (d) have higher molar masses compared to hydrogen, leading to lower root mean square velocities at the same temperature.
Explanation
The root mean square velocity of a gas is inversely proportional to the square root of its molar mass. Since hydrogen has the lowest molar mass among the options given, it possesses the maximum root mean square velocity at a given temperature.
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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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