Particulate nature of matter

Aleksandra Olszewska
Note by Aleksandra Olszewska, updated more than 1 year ago
Aleksandra Olszewska
Created by Aleksandra Olszewska almost 8 years ago
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Cambridge IGCSE Chemistry Note on Particulate nature of matter, created by Aleksandra Olszewska on 09/16/2013.

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Particulate nature of matter

Matter is made up of moving particles ATOMS IONS MOLECULES

kinetic theorychanges of state

3 states of matterSOLID LIQUID GAS

Diffusion is an evidence of moving particles

A word on diffusion:Particles move past agains each other and occupy total avaliable space.It does not occur in solids.In liquids it's much more slowly than in gases, because of slow movement of particles.Lighter molecules will move faster, so diffusion will take place faster as well.

Relative rates on diffusion:Lighter gases diffuse faster.

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