(Photo Courtesy Loupe Clean)
In the previous post, i have discussed on the overview checklist that students need to know about this topic of Particulate Nature of Matter (commonly known as Kinetic Particle Theory).
Besides the “connection between relative molecular mass of a gas & its rate of diffusion” which is listed as very important, students should also know how to describe & differentiate the 3 States of Matter: Solids, Liquids & Gases, with respect to:
- Arrangement of the particles
- Forces between the particles
- Movement of the particles
- Energy of the particles
- Density
Let’s take a look at it now.
|
Comparison
|
Solids |
Liquids |
Gases |
| Arrangement of particles | Closely packed together in an orderly arrangement | Close together in a disorderly arrangement | Far apart in a random arrangement |
| Forces between particles | Strong forces | Strong forces | No forces |
| Movement of particles | Vibrates about their fixed positions | Slide past each other randomly | Move about quickly & randomly |
| Energy of particles | Low | Moderate | High |
| Density | High (bcos particles are close together) | Quite high (bcos particles are close together) | Low (bcos particles are far apart) |
With the above comparisons, we shall now discuss which States of Matter can be compressed upon the application of [Read more…] about O Level Chemistry: Particulate Nature of Matter (Kinetic Particle Theory) Part 2