I have just received a message from a gentleman who needs our help! It seems that a certain individual who goes by the name of Nemo has been wondering (as he is wont to do) what would happen if an extraorinarily strong container full of water were dramatically chilled. Would it freeze?
Let's assume that container is made of a material and of a construction which is sufficiently strong not to deform or burst from internal pressure. Let's further assume that the container is filled to the very top, and that the water is at a 4 deg. Therefore, any further chilling of the water from this point would result in expansion. Clearly, the water will not be able to completely tranform into regular ice. A given mass of regular ice just won't fit into a container with a volume exactly sufficient for the same mass of 4 deg C water. So what will it do? Will it form some exotic type of amorphous ice? some strange crystalline form? Perhaps Ice-9?
This article almost touches on the topic. And it's got the most amazing water phase diagram I've ever seen (see above)... but it didn't help me figure it out. I'm more confused than ever. Any thoughts?