Entry 11

Hi everyone!! Today I had another awesome chemistry lab lesson in school!! Ths lesson was extremely informative and super interesting!

We were introduced to the chapter of kinetic particle theory. The kinetic particle theory helps to explain the way in which matters behaves, the evidence is consistent with the idea that all matter is made up of tiny particles. This theory explains the physical properties of matter in erms of the movement of its constituent particles. 

Diffusion is a Physical phenomenon that takes place in liquids and gases, an evidence is the smell of aromatic essential oil where the gas particles spread out in a haphazard and random way. 

Gases diffuse at different rates, light particles travel faster than heavier ones at a given temperature.  

Diffussion also takes place in liquids but at a slower rate due to lower kinetic energy posses by the particles moving.

We carried out an experiment that involced mixing to silids: beans and sand. Our conclusion at the end of the experiment is that when equal volumes of sand bean are mixed together, the total colume is less that the two columes added together, there are spaces between both the sand and beans.

Experiment 2: 
1. Fill up half the pastic tube with distilled water. 
2. Gently top up the remaining half of the tube with alcohol. Ensure that the liquid is all the way to the top of the tube. 
3. Do not mix the two lquids. There should be a line/an interrface that indicates two layers of liquids. 
4. Hold the tube with your thumb covering the open end of the tube completely. 
5. Invert and hold on to the tube regardless of the strange sensation the mixing creates on the thumb. 
6. Hold the tube upright again

What we observed....
The volume of the mixture after the procedure is lower than the original one. This is because the water molecules are smaller hence can fit in to the spaces of the ethanol hence having a slight drop in volume.

Particles in solid move, however it moves very slowly. they vibrate at their fix posuitions. Between particles they have strong attraction within them to keep them together. 

 After awhile the gases in the jar will become a uniform colour. 

Conclusion...
Gaseous particles are in constant and random motion. 

How wil you define diffusion? 
Diffusion is the movement of particles from a region of high concentration to low concentration area until it reaches its equilibrium. 

3 important points to sum up the experiments:
1. There are spaces between each partivles
2. They move in random and constant motion
3. Large particles diffuse slower as compared to lighter particles.

That's all for now, i will share with you all more after tomorrow lesson again! Thanks for reading!! :)