Rate of effusion of a gas depends upon:
Correct answer: E. All of the above
- A. Size of pinhole
- B. Pressure
- C. Temperature
- D. Molecular mass
- E. All of the above
Explanation
Effusion: When gas is confined to a container at higher pressure than in the surrounding atmosphere it will escape from a small hole that is opened in the container until the pressure outside and inside has been equalized. This process is called effusion. Graham's law of diffusion states "under the same conditions of temperature and pressure, the rates of diffusion of different gases are inversely proportional to the square roots of their molecular masses or their densities."
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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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