Re: does water freeze if no room to expand?

["Kilmer, Skip" <kilmers@GREENHILL.ORG>]

On the other hand, doesn't ice have a positive coefficient of expansion? If
so, at some temperature the ice would occupy less space than the water did
at zero, even at normal pressure. 'Course this is ignoring the fact that
super cooled water is a well-known phenomenon to airplane drivers. (at least
in theory)
skip

-----Original Message-----
From: John S. Denker [mailto:jsd@MONMOUTH.COM]
Sent: Friday, November 02, 2001 4:33 PM
To: PHYS-L@lists.nau.edu
Subject: Re: does water freeze if no room to expand?


At 05:08 PM 11/2/01 -0500, Robert Cohen wrote:
> Suppose liquid water was placed in a container such that there was no room
> to expand.  If the container was unbreakable, would the water eventually
> freeze if the temperature got cold enough?
> If so, when?

Hint: Estimate the maximum pressure obtained by freezing at constant volume.

Hint: You can estimate that from the well-known volume change at
atmospheric pressure, and the well-known compressibility.

Hint: Find the freezing point at that pressure.
  http://www.sbu.ac.uk/water/phase.html