Practice question · Select all that apply
Which assumptions does the kinetic molecular model make about an ideal gas?
Hints
- Three are genuine assumptions of the model; one contradicts the Maxwell distribution.
- Particles share an average kinetic energy but have a broad spread of speeds.
Show the answer
- A. There are no attractive forces between particles
- B. Particles have negligible volume compared to the container
- C. Collisions are perfectly elastic
Why
The model assumes point particles, no intermolecular forces and elastic collisions. It does not assume a single speed, the Maxwell distribution gives a wide spread about the average.
Practise Gases, Kinetic Theory and Intermolecular Forces
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