y do solids do not diffuse into one another?

Answer 1

An inherit characteristic of solids is that their molecules are tightly packed together giving it a fixed shape. For this very reason, solids are not able to diffuse into one another since diffusion will only occur if molecules are free to move and not tightly packed such as in the case of most fluids and gases.
In simpler terms, there is no room for solid molecules to diffuse into hence solids are not able to diffuse into one another.

However, by applying certain conditions such as varying temperatue and pressure which results into disruption of the molecular "packing" of solids, then diffusion might occur. Generally speaking though, it will not since its molecular packing/make-up does not permit it to do so.

Hope this helps. =)

Answer 2

Solids are generally bound together by covalent atomic bonds as well as other intermolecular forces (electrostatics) that limit the mobility of the atoms in the system.

However, this is true only for the most inert solids (things like refractory ceramics). Energies of surfaces are much higher than bulk energies and two solids will diffuse into each other if the resulting interface is lower in energy than the two original surfaces.

This does not address the issue of kinetics, where it may take a long time for the two interfaces to diffuse appreciably.

Answer 3

I think the answers in your question. But lets just break it down for the other people who can't read. . .which would make no sense why they would be on here. . .ANYWAY! But solids can't diffuse into each other because their solids, its beyond their element. Solids, liquids, and gases. Gases and liquids can diffuse into each other because they have that property. But solids can't, unless their melted. SO I GUESS THAT MEANS THEY CAN.

Answer 4

it's not completly true. some solids do diffuse because thier structure is week. in these type of solids the moleculars are held togather with Vandervals forces which are week. but in other types of solids like metals and ionic substances, the forces that hold the substructures togather are to powerfull and can't be overcomed under normal conditions( we can overcome them useing hard conditiond like very high themprature or peresure) so under normal conditions they stay put. (for more information see: "Inorganic chemistry: Principles of structure and reactivity By James E Huheey")

Answer 5

Solids are very hard and their molecules are tightly packed. No physical methods can break them. Thus, they cannot diffuse into one another.

Answer 6

molecules are packed together too tight, no place for diffusion especially with another solid, who has a similar make up

Answer 7

some "solids" will diffuse into one another, the process is very slow and limited

solids that are very crystalen, have their molecules locked into a rigid matrix

the difference between solids and fluids is that the fluids have un-fixed molecules that can change postitions, separate, move, etc

diffusion requires separation and movement of molecules

Answer 8

In solids particals are very closely packed.In gases particals are far away from each other . So gases diffuse .

Answer 9

Because they ARE solids. That's what makes them solids...

OK I get your question. Like me solids are just dense enough.

Answer 10

this is because of its high inter molecular interaction between atoms of solid .