Asked in UHS MDCAT 2010 2010Moderate

The root mean square velocity of gases is inversely proportional to the square root of their:

Correct answer: A. Molar mass

  • A. Molar mass
  • B. Temperature
  • C. Pressure
  • D. Volume

Explanation

A is correct as r.m.s velocity of gases is inversely proportional to the square root of their molar masses.B is incorrect as r.m.s velocity is directly proportional to square of temperatureC is incorrect as r.m.s velocity isnt dependent upon pressureD is incorrect as r.m.s velocity isnt dependent upon volume

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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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