Here's why:
* Diffusion is the movement of particles from an area of high concentration to an area of low concentration.
* This movement happens naturally, driven by the tendency for particles to spread out and occupy the available space.
* In simpler terms, things tend to move from crowded areas to less crowded areas until they are evenly distributed.
Example:
Imagine you spray perfume in one corner of a room. The perfume molecules are initially concentrated in that corner. Over time, they will diffuse throughout the room, moving from the area of high concentration to the area of low concentration until the scent is evenly distributed.
Key Points:
* Diffusion doesn't require energy input (it's a passive process).
* The rate of diffusion depends on factors like temperature, concentration difference, and the size and nature of the molecules.
Let me know if you have any other questions!