ð›°« DIFFUSION
Diffusion is the movement of molecules from a region of heigher concentration to a region of lower concentration down the concentration gradient.
— The intermixing of particles of two substances on their own is called diffusion.
— The rate of diffusion increases on heating, science with increase in temprature kinetic energy of the particles increases and they move faster.
— Diffusion occures in gases, liquids and solids. The diffusion is fastest in gases because the particles in gases move very rapidly. The diffusion is slowest in solid because the particles in solids do not move much. The diffusion in liquids is however, much faster than that in solids and slower than that in gases.
🖋EXAMPLES OF DIFFFUSION
- 👉Perfume is sprayed in one part of a room, yet soon it diffuse so that you can smell it everywhere.
- 👉A drop of food coloring diffuses throughout the water in a glass so that, eventually, the entire glass will be colored.
- 👉When steeping a cup of tea, molecules from the tea cross from the tea bag and diffuse throughout the cup of water.
- 👉When shaking salt into water, the salt dissolves and the ions move until they are evenly distributed.
- 👉After lighting a cigarette, the smoke spreads to all parts of a room.
- 👉After placing a drop of food coloring onto a square of gelatin, the color will spread to a lighter color throughout the block.
- 👉Carbon di oxide bubbles diffuse from an open soda, leaving it flat.
- 👉If you place a wilted celery stick in water, water will diffuse into the plant, making it firm again.
- 👉Water diffuses into cooking noodles, making them bigger and softer.
- 👉A helium balloon deflates a little bit every day as helium diffuses through the balloon into the air.
- 👉If you place a sugar cube in water, the sugar will dissolve and evenly sweeten the water without having to stir it.
PLEASE SUBSCRIBE MY CHANNEL:- https://www.youtube.com/channel/UCIIEve3CJeYCn6_yVxAlJGQ