ELI5: Explain Like I'm 5

Diffusiophoresis and diffusioosmosis

Okay kiddo, so imagine you have a glass of water with some tiny particles like sugar or salt inside. Now, if you were to leave that glass out on the table, eventually those particles would spread out and move around in the water all by themselves. This is called diffusion and it happens because the particles like to move from an area where there are lots of them to an area where there are fewer of them.

Now, diffusiophoresis and diffusioosmosis are two fancy words that scientists use to describe when particles move around in water because of diffusion but also because of other things happening at the same time.

Diffusiophoresis is when particles in the water are also pushed around by an electric field. It's like someone is playing tug-of-war with the particles, and the electric field is the rope pulling them in one direction or another.

Diffusioosmosis is when the water itself is moving around because of the particles in it. Imagine you're on a raft in a river and there are lots of big rocks in the water. As the water flows around the rocks, it also pushes your raft along with it. That's kind of like what happens when water is moving around because of the particles inside it.

So there you have it, diffusiophoresis and diffusioosmosis are just ways that particles and water can move around in a really complicated way, but it all starts with simple old diffusion!
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