Re: Methanol and water...
- From: Gordon <gordonlr@xxxxxxxxxxxxxxxx>
- Date: Fri, 03 Nov 2006 00:51:47 GMT
On Fri, 3 Nov 2006 00:10:58 -0000, "Marcus Fox"
<please-reply-via-newsgroup-th@xxxxxxxxxxxxxxxx> wrote:
I have an experiment that involves mixing 50 cc of methanol with 50 cc ofMake a comparison of mixing a given volume of coarse gravel with
water. However, I need to find an explanation why the volume of the combined
liquids would not be as some students may expect. I am able to use Google to
find a detailed explanation, involving thermodynamics, but this is way above
the level that I need to explain it at. Do I simply say that the water
dissolves in the methanol, or the methanol dissolves in the water, or some
other explanation? And is this experiment safe enough for a group of pupils
to do on their own instead of a teacher demonstration? It seems to be
described as so in books at this level, but I always remembered methanol as
being quite hazardous.
Many thanks for all comments,
Marcus
a same volume of fine sand. The mixture won't be equal to the sum
of the original volumes.
Gordon
.
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