7 At room temperature and pressure, H2O is a liquid and H2S is a gas.What is the reason for this difference?C A O has higher first and second ionisation energies than S. B The covalent bond between O and H is stronger than the covalent bond between S and H. C There is significant...
Hydrogen Bonding and the Liquid-to-Glass Transition in 1- and 2-Propanol at High PressuresThe pressure dependence of the vibrational modes of propan-1- and -2-ol was measured by Raman spectroscopy up to 8 GPa at 300 K. Changes in the observed vibrational spectra indicate that the samples ...
Zeidler, Hydrogen bonding in liquid methanol at ambient conditions and at high pressure, Mol. Phys. 98 (2000) 125-134.Weitkamp, T.; Neuefeind, J.; Fischer, H. E.; Zeidler, M. D. Hydrogen Bonding in Liquid Methanol at Ambient Conditions and at High Pressure. Mol. Phys. 2000, 98, ...
There is an existing model that diamond can be grown using liquid metals only at both high pressure and high temperature7. Here we describe the growth of diamond crystals and polycrystalline diamond films with no seed particles using liquid metal but at 1 atm pressure and at 1,025 °C,...
H2 View is a new platform to support and promote the growing hydrogen economy. Built around three core pillars of Mobility, Power and Technology
The dynamics of hydrogen bond formation and breakage for water in the vicinity of water/hydrocarbon liquid interfaces is studied using molecular dynamics s... J Chowdhary,BM Ladanyi - 《Journal of Physical Chemistry B》 被引量: 26发表: 2009年 Hydrogen Bond Dynamics at Water/Pt Interfaces We ...
aor by heating to 60 °C at 1 mm Hg pressure. The product was found to be free of ionic liquid catalyst by 1H NMR spectroscopy. 或通过加热对60 °C在1毫米Hg压力。 产品是由1H核磁共振的分光学发现的免于离子液体催化剂。[translate]
Friction determines whether liquid droplets slide off a solid surface or stick to it. Surface heterogeneity is generally acknowledged as the major cause of increased contact angle hysteresis and contact line friction of droplets. Here we challenge this long-standing premise for chemical heterogeneity at...
a我在看书?你在做什么? I am reading? What are you making?[translate] aThe balance of hydrogen for the products indicates that the decrease of dry gas and coke at the optimal reaction conditions leads to more H of the feed is distributed into the liquid products 氢平衡为产品表明干燥气体和焦...
Electrocatalytic hydrogenation (ECH) produces high-value chemicals from unsaturated organics using water as a hydrogen source. However, ECH is limited by the low solubility of substrates when operated under aqueous conditions, by electrical losses when p