Re: Density of water.

[Bernard Cleyet <anngeorg@PACBELL.NET>]

Right, Hewitt plots (ordinate) the volumne of one gram of water instead of the
inverse.   No matter, he's plotting water not ice.   Ice (normal near zero C
[ice I]) 917 kg / m^3 or sg ~ .92   Water @ 100 C  is 1.04 mL / g  or sg 0.96  So
ice floats as per your experience (and mine).

bc


Ludwik Kowalski wrote:

> Something is not right in the reference you are quoting, or in
> your interpretation. As far as I know the density of water
> decreases monotonically between about 4 C to nearly 100 C.
>
> "E.C. Muehleisen" wrote:
>
> > Folks,
> > I haven't the foggiest on how to send a message to the list, so I have
> > resorted to replying to the shortest message in this issue.
> > The density of water increases to a maximeum at about 4 degrees Celsius. As
> > the temperature continues to decrease, the density decreases. Hence ice
> > floats in water. However, if one believes the volume versus teperature curve
> > as shown in Hewitt, then one must believe that the density of hot (above 20
> > degrees celsius) is less than that of ice. Why, then, does ice float in very
> > hot, nearly boiling, water?
> >
> > Too much of a good thing is wonderful!
> >
> > _________________________________________________________________
> > Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp