DiffusionMicroMacro

Autor:

Sbyrnes321

Credit:

Praca własna

Krótki link:

https://plwiki.pl/b/64526

źródło:

Wikimedia Commons

Wymiary:

360 x 300 Pixel (411139 Bytes)

Opis:

Diffusion from a microscopic and macroscopic point of view. Initially, there are solute molecules on the left side of a barrier (magenta line) and none on the right. The barrier is removed, and the solute diffuses to fill the whole container. Top: A single molecule moves around randomly. Middle: With more molecules, there is a clear trend where the solute fills the container more and more evenly. Bottom: With an enormous number of solute molecules, the randomness is gone: The solute appears to move smoothly and systematically from high-concentration areas to low-concentration areas, following Fick's laws. Image is made in Mathematica, source code below.

Licencja:

Public domain