Talk:Diffusion

Diffusion is the movement of molecules from high free energy to low free energy (not high concentration to low concentration). —Preceding unsigned comment added by Quinlan matthews (talk • contribs) 19:35, 12 October 2010 (UTC)

Removed redirect

This page redirected to Talk:Molecular diffusion. There's relevant discussion here, but they are separate Wikipedia pages. —Alex (ASHill | talk | contribs) 20:43, 24 January 2012 (UTC)

Less technical explanation would be useful to a larger range of readers

I dont want to discourage the improvement of the technical information in the article. I think this is of great value to those who can understand it, but I would guess this to be less than 5% of the readers. I would like to see a greatly simplified qualitative description of the process, so the reader who has heard the term, but has no background in physics and is mathematically challenged, can develop an idea of what diffusion means. For example, In diving theory diffusion is an important process in decompression and decompression sickness, but most divers only need to have a qualitative gut feel for why the gas particle move one way and not the other, and why the rate changes. This level of understanding would probably be useful to a larger number of users than the mathematical analysis. Peter (Southwood) ^(talk): 19:20, 1 June 2012 (UTC)

Diffusion is important in thousands of processes, indeed. I just do not know how to introduce diffusion without the ideas of advection, bulk motion and diffusion flux. It may be a proper place between the historical part and the more formal parts for the explanation (for example Section "Diffusion in real life and technology"). Unfortunately, this is not my profession. I will try to continue the physical and mathematical part (and promise to try to be not too formal) and will be happy if somebody will write this "real life and technology" section. A good source of information gives the journal "Diffusion Fundamentals" http://www.uni-leipzig.de/diffusion/ -Agor153 (talk) 21:38, 1 June 2012 (UTC)

Just keep on doing what you know best. I will try to write up something that is accessible without being too wrong. Or someone else can... Formal is fine, just that in isolation it closes the door on most people. As an example, the comment higher up on this page that diffusion is the movement from high free energy to low free energy will be totally meaningless to most people, while high concentration to low concentration probably makes some sense to them. Could you check your Diffusion Fundamentals link, I got a 404 not found error. I sorted it out, a space was needed. Cheers, Peter (Southwood) ^(talk): 06:50, 2 June 2012 (UTC)

Request for information on diffusion through interface between liquids

An explanation of diffusion of a gas across the interface between two immiscible liquids would be appreciated and would add to the usefulness of the article. I am particularly interested in the case where the solubility of the gas in the two liquids is very different. Peter (Southwood) ^(talk): 19:23, 12 June 2012 (UTC)

OK, we can try. "Diffusion through the interface". It is very important, for example, for climate research (and not only). Perhaps, we can write it after three general sections sections, "Basic models", "Thermodynamics of diffusion" and "Diffusion in solids".-Agor153 (talk) 08:24, 13 June 2012 (UTC)

Whatever suits you best. Peter (Southwood) ^(talk): 13:19, 13 June 2012 (UTC)

Broken Video

The first video's broken, we might want to remove it. It's a not allowed error.

The red/blue ball animation lags out and crashes the whole browser, but that just may be my low RAM.

Cor Ferrum (talk) 22:44, 29 October 2012 (UTC)