Today in class we've talked a lot about forces between particles, states of matter, and other stuff like that.
We started talking about some vanilla candles, Andy had on a chair. Why did the room smelt with vanilla? We all said: The candles! But why? Diffusion is a great thing that happens with all of the things. The diffusion starts were all the particles are more concentrated (solid) and ends were the particles are less concetrated (the air at a corner of the room, for example).
Then we talked about the kinetic theory. You may ask: What's that? Well, it is a very important thing all people should know. The kinetic theory, refers to the "movement" of particles in solids liquids and gases.
In a solid the forces of attraction between particles are very strong, keeping the shape rigid.
These forces are weakened in a liquid, so their structure is not a regular arrangement.This means that liquids can take the shape of any container they are in.
The forces of attraction between particles in gases have been overcome as the particles have more energy. This means that a gas does not have definite shape.
2 comments:
Another excellent post summarising the lesson very well Isabel!
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