Q. In the kinetic theory of gases, what is assumed about the volume of gas molecules?

गैसों के गतिज सिद्धांत में गैस अणुओं के आयतन के बारे में क्या माना जाता है?

A
It is negligible compared to the volume of the container
यह कंटेनर के आयतन की तुलना में नगण्य है
B
It is significant compared to the volume of the container
यह कंटेनर के आयतन की तुलना में महत्वपूर्ण है
C
It increases with temperature
यह तापमान के साथ बढ़ता है
D
It decreases with pressure
यह दबाव के साथ घटता जाता है

Explanation

One of the fundamental assumptions of kinetic molecular theory is that gas molecules themselves occupy negligible volume compared to the container volume.

Kinetic theory assumptions:

  1. Molecules are point masses (negligible volume)
  2. No intermolecular forces except during collisions
  3. Elastic collisions only
  4. Random molecular motion
  5. Average kinetic energy ∝ temperature

Real vs. Ideal:

  • This assumption works well at low pressure and high temperature
  • At high pressure, molecular volume becomes significant
  • This is why real gases deviate from ideal behavior

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