Posted on 01/21/2005 9:39:36 AM PST by SunkenCiv
In ice, each molecule grabs the feet and hands of its four nearest neighbors. The placement of these neighbors forms a tetrahedron, or three-sided pyramid. When ice melts, the big question is what happens to this shape. The traditional picture, the one that Saykally is defending, is that water continues to look – for the most part – like ice with four hydrogen bonds around each molecule. The difference in the liquid form is that, at a given time, approximately 10 percent of the hydrogen bonds are broken. Nilsson’s group, in contrast, claims that water takes on a new structure, in which a molecule essentially grabs on to only two of its neighbors – with just one hand and one foot. At room temperature, 80 percent of water molecules are in this state, while the rest have the traditional four hydrogen bonds. The implication of this new two-bond model is that liquid water would be made up mostly of chains and perhaps closed rings, as opposed to the tighter network of tetrahedrons.
(Excerpt) Read more at livescience.com ...
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Project Aims to Develop Hydrogen PowerHigh temperature electrolysis could become economically feasible by using the next generation of nuclear reactors to split water into hydrogen and oxygen, said officials with Ceramatec Inc. and the Idaho National Engineering and Environmental Laboratory... The sample, about the size of a paperback book, had its successful test in a pottery kiln used to simulate the high temperatures created by the next generation of nuclear reactors -- about 1,800 degrees Fahrenheit. Researchers said the process of obtaining hydrogen by splitting water using electric energy has been known for about 150 years. Its high cost in dollars and electric energy made it an unpopular choice... The Energy Department is hoping for a demonstration of commercial-scale hydrogen production using the process by 2017. |
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They can't figure out what happens to water and they want us to take evolution seriously?
Smart comment. Which is why I love to read Free Republic!
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