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Count Iblis
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http://arxiv.org/abs/1001.4090"
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We consider general theoretical models of water and in particular the nature of the motions of the hydrogen nuclei. If the motion of hydrogen nuclei is classical, then the thermodynamic pressure equation of state for heavy water wherein the hydrogen nuclei are deuterons is identical to the pressure equation of state for light water wherein the hydrogen nuclei are protons. Since the experimental thermodynamic phase diagram for light water is clearly measurably different from the experimental thermodynamic phase diagram for heavy water, one may deduce that the motions of hydrogen nuclei are quantum mechanical in nature. This conclusion is in physical agreement with a recent analysis of X-ray, neutron and deep inelastic neutron scattering data.
Count Iblis said:http://arxiv.org/abs/1001.4090"
Thermodynamic evidence for water as a quantum mechanical liquid refers to experimental observations and calculations that support the idea that water behaves as a quantum mechanical system. This means that the behavior of water molecules and their interactions are best described by the laws of quantum mechanics rather than classical mechanics.
Water is a quantum mechanical liquid because its molecules are relatively small and highly polar, which allows them to interact with each other through strong hydrogen bonds. These interactions are inherently quantum mechanical in nature and cannot be fully described by classical physics.
The quantum mechanical nature of water has a significant impact on its properties. One of the most notable effects is the unusual behavior of water at low temperatures, where it becomes less dense as it freezes. This is due to the formation of hydrogen bonds, which are influenced by quantum mechanical effects.
Several experimental techniques, such as neutron scattering and nuclear magnetic resonance spectroscopy, have provided evidence for the quantum mechanical behavior of water. These experiments have shown that water molecules exhibit quantum effects, such as tunneling and delocalization, that are not observed in classical liquids.
The recognition of water as a quantum mechanical liquid has implications for various fields of science, such as biology, chemistry, and geology. It can help explain the unique properties of water and its role in many natural processes, such as protein folding and mineral formation. Understanding water at the quantum level can also aid in the development of new technologies, such as more efficient fuel cells and improved drug delivery systems.