Not much more to add. By shrink, I mean become more dense at the same pressure and temperature.
And I don't mean vol(A+B) < vol(A) + vol(B). I'm sure this is possible.
Is it possible to get vol(A+B) < vol(A)?
$\begingroup$
$\endgroup$
1
-
$\begingroup$ I deleted an inappropriate comment and the following discussion. $\endgroup$– David ZNov 16, 2013 at 6:28
Add a comment
|
2 Answers
$\begingroup$
$\endgroup$
Yes
http://www.nuffieldfoundation.org/practical-physics/volume-change-dissolving-salt-water
This definitely is not material science but chemistry.
$\begingroup$
$\endgroup$
The answer is yes. Adding a salt to water in reasonably small amounts often results in a volume shrinkage such that vol(water+salt) < vol(water). A typical example is sodium chloride.
This works because in the liquid state water has an open structure. The presence of a solute can cause this open structure to break down and the solution to become more dense.
