Why does the smell of a scent spread quickly?

The smell of a scent spreads quickly due to the movement of volatile molecules in the air. When a substance releases these molecules, they disperse rapidly, mixing with the surrounding air. Factors such as temperature, air currents, and the concentration of the scent can enhance this diffusion, allowing the scent to travel farther and be detected more easily. Additionally, the small size and light weight of these molecules enable them to move swiftly.