antagon
The Man
- Dec 6, 2009
- 3,572
- 295
- 48
not much better, buddy. earlier i explained the molecular hydrogen bonds were analogous to the liquid phase inter-molecular bonds. this applies to water's crystal structure too. there's different types of ice, but the sort frozen from standing water is not dramatically different from the liquid because the crystalline bonds are closely analogous to the liquid bonds.OK I thought of one more thing that might help:
Water is so anxious to make a state change to a gas that it will evaporate at temps far below it's boiling point, that's where vapor pressure comes in.
No input is required to make water evaporate at temps far below it's boiling point except dry air that is 1 degree warmer than the water. Water will evaporate one molecule at a time and will cool the parent water as it does and will not warm the air.
Water will even do this at temps below freezing, it is called sublimation. And it happens to ice cubes in your freezer every day. Ice converts directly to vapor from ice even in the dark dry space that is your freezer.
Ice btw is a much better insulator than water.
freezers are subject to depositation, the opposite of sublimation. at ambient pressure, significant sublimation will require a source of heat. there has to be a temp/pressure gradient. in modern freezers which cycle out depositation (frost) with fluctuations in temperature, these temps facilitate the most sublimation. this is why ice boxes are better than freezers with respect to freezer burn, a product of sublimation.