Basic Assumptions of the Kinetic Theory of Matter (Gases)
- The attractions between molecules are negligible
- The molecules of a gas are in a state of constant random motion, colliding with one another and the walls of their container
- The collisions of the molecules are perfectly elastic
- The duration of a collision is negligible compared with the time between collision
- The molecules possess kinetic energy by virtue of their motion which is directly proportional to their temperature.
- Explain why the pressure of a gas at constant temperature increase with a decrease in the volume of the gas
- What do you understand by diffusion?
- Can diffusion take place in solids, liquids and gases? Explain
- Explain these phenomena using the kinetic theory of matter: (a) Brownian motion (b) surface tension (c) osmosis
- Consider at least four different liquids. E.g palm oil, ground nut oil, engine oil, e.t.c and test their degree of viscosity as was done earlier using a suitable ball bearing. Now answer these questions
- In which liquid did the ball travel fastest?
- Which liquid did the ball travel slowest?
- Hence, list the liquids in their order of viscosity starting from the lowest to the highest.
- Mention two other low viscous liquids and two other high viscous liquids.
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