Kinetic Particle Theory

(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:

1. Arrangement of the particles
2. Forces between the particles
3. Movement of the particles
4. Energy of the particles
5. 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