This is part 1 of the I/GCSE Chemistry blog post where we look into experiments for the movements of particles.
Diffusion is the gradual movement of particles from places where there are lots of them to places where there are fewer of them. It's just the natural tendency for stuff to spread out.
Potassium Manhanate (VII) and Water
1.) If you take a beaker of water and place some potassium manhanante (VII) at the bottom, the purple colour slowly spreads out to fill the beaker.
2.) The particles of potassium manganate (VII) are diffusing out among the aprticles of water.
3.) It's the random motion of particles in a lquid that cases the purple colour to eventuallly be evenly spread out throughout the water.
Potassium Manganante (VII) solution can be diluted by adding water
- If you were to add more water to the final purple solution, the potassium manganate (VII) particles would spread even further apart and the solution would be less purple.
- This is called dilution.
That is all for the part 1!
