AS an illustration of the extraordinary power of the new cooling agent—liquid hydrogen, the extreme rapidity with which high vacuo can be produced by its use is, perhaps, one of the most striking. The absolute boiling points of hydrogen, oxygen, and chlorine are respectively 35°, 90° and...
Here we established a simple quantitative relationship between the calculated covalency of hydrogen bonds in liquid water and the anisotropy of the proton magnetic shielding tensor that can be measured experimentally. This relationship enabled us to quantify the degree of covalency of hydrogen bonds in ...
A high-temperature liquid hydrogen superconductor coil can be used as part of a hybrid unit together with a liquid hydrogen internal combustion engine and a high-temperature superconductor electric machine (motor/generator) as energy store. Photovoltaic cells can be produced by performing electrolysis ...
Hydrocarbon fluids are mixtures of a large number of hydrocarbon components, in addition to mostly small amounts of some nonhydrocarbon components that can include helium, nitrogen, carbon dioxide,hydrogen sulfide, and other impurities. The hydrocarbon components range from the smallest molecule of meth...
Hydrogen 20 29–33 33 Nitrogen 77 107–119 126 Oxygen 90 131–145 155 Table 3. Experimental boiling points and experimental and theoretical SLT values based on a table in Wakeshima and Takata (1958). SubstanceBoiling point (K)SLTeksp. (K)SLTtheor. (K) n-Pentane 309 383 383 n-Hexane ...
Tunneling of Hydrogen in the Transition Metals Nb, Ta and V at Liquid Helium Temperatures* Low temperature effects on sound absorption, specific heat and neutron scattering related to tunnel states of trapped H in Nb, Ta, V and Nb-Ti alloys are d... G Cannelli,R Cantelli,F Cordero - 《...
Vapor-liquid and critical behavior of binary systems of hydrogen chloride and n-alkanes: experimental data and soft-SAFT modeling. The purpose of this work is to check the capability of the crossover soft-SAFT equation of state to predict the phase behavior of hydrogen chloride/n-alkan... F...
“simple” liquids, like Ar or CCl 4 , is governed by molecular shape, water has an open, locally tetrahedral, structure, maintained by a network of highly directional hydrogen bonds [1–3]. It has long been recognized that the thermal anomalies of water are related to this hydrogen-bond ...
suggested the presence of a first-order liquid–liquid phase transition (LLPT) line in the supercooled region of the pressure–temperature (P–T) phase diagram7. In this scenario, this transition line separates two liquid phases formed of transient hydrogen-bond networks—the low-density liquid ...
hydrogen-bond network, occurring as a result of thermal fluctuations18. The regions of empty space are frequently formed as asymmetric, fractal voids that are highly delocalized over the hydrogen-bond network, and the corresponding nanometer-sized density fluctuations can be associated with these voids...