Particle Theory and Diffusion

 Introduction: Today we have been learning about Matter/Particle and Diffusion, we learnt the basics of Diffusion about what it is and how it works, we did the same thing with Particle Theory. Let's start with Matter, Matter is anything that has mass or takes up space. Matter is made of particles, particles are small units which make up something, everything that's on Earth is made up of particles. 

There are different states of Matter, those are Solid, Liquid & Gas. These states can change either by adding or removing energy from it, we do this by heating it or cooling it. There is space between all particles, particles are always moving, there are also attractive forces between particles and the temperatures affect the speed at which the particles move. 

Diffusion is the movement of the particles of a high concentration area to a low concentration area, it usually happens in liquid and gases because their particles are always moving around since both states have no fixed shape. Temperatures do affect the particles speed of spread and results will be different.

Particle Theory: Particle Theory explains mostly about the states and changes of possessions in different states of matter.

• All matter is made up of particles.
• All particles in a pure substance are the same.
• There is space between all particles.
• Particles are always moving.
• There are attractive forces between particles.
• Temperature affects the speed at which particles move.

Diffusion: It is when particles move from an area that has high concentration to an area of low concentration. (We have been given an experiment to do about Diffusion.)

Our Aim: To investigate the effect of temperature on the rate of Diffusion.

Hypothesis: I think that hot water will diffuse faster than cold water because I know that heat will make the particles move much faster because it has a lot of energy put into it and it is more likely for it to spread swiftly.

Method:

1. Get 2 plates or cups and put warm water in one, and cold water in the other. Make sure both plates or cups are the same size
2. Get some Potassium Permanganate (KMn04)
3. Put the Potassium Permanganate in both plates or cups in warm and cold water, also make sure they are the same amount put in both cups.  

Conclusion:

My Hypothesis was correct, the warm water made the Potassium Permanganate spread much faster than the cold water. The reason warm water made it spread faster is that it had more energy in it and the particles were moving fast to spread it much more quickly.