normal hydrogen scale

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• normal hydrogen scale — norminė vandenilio skalė statusas T sritis Standartizacija ir metrologija apibrėžtis Temperatūrų skalė, pagrįsta dviem fiksuotais, t. y. ledo tirpimo (0 °C) ir vandens virimo (100 °C), taškais, kurie matuojami pastoviojo tūrio vandenilio… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

• Hydrogen — This article is about the chemistry of hydrogen. For the physics of atomic hydrogen, see Hydrogen atom. For other meanings, see Hydrogen (disambiguation). ← hydrogen → helium …   Wikipedia

• hydrogen — /huy dreuh jeuhn/, n. a colorless, odorless, flammable gas that combines chemically with oxygen to form water: the lightest of the known elements. Symbol: H; at. wt.: 1.00797; at. no.: 1; density: 0.0899 g/l at 0°C and 760 mm pressure. [1785 95;… …   Universalium

• Hydrogen bond — A hydrogen bond results from a dipole dipole force between an electronegative atom and a hydrogen atom bonded to nitrogen, oxygen or fluorine (thus the name hydrogen bond , which must not be confused with a covalent bond to hydrogen). The energy… …   Wikipedia

• Hydrogen peroxide — IUPAC name …   Wikipedia

• Hydrogen cyanide — IUPAC name …   Wikipedia

• Hydrogen sulfide — Systematic name …   Wikipedia

• Hydrogen production — Hydrogen is commonly produced by extraction from hydrocarbon fossil fuels via a chemical path. Hydrogen may also be extracted from water via biological production in an algae bioreactor, or using electricity (by electrolysis), chemicals (by… …   Wikipedia

• Hydrogen economy — The hydrogen economy is a proposed system of delivering energy using hydrogen. The term hydrogen economy was coined by John Bockris during a talk he gave in 1970 at General Motors (GM) Technical Center.[1] Hydrogen advocates promote hydrogen as… …   Wikipedia

• scale — 1. A standardized test for measuring psychological, personality, or behavioral characteristics. SEE ALSO: score, test. 2. SYN: squama. 3. A small thin plate of horny epithelium, resembling a fish s., cast off from the skin …   Medical dictionary

• Standard hydrogen electrode — NHE redirects here. For the sodium hydrogen exchanger protein, see Sodium hydrogen antiporter. The standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation reduction… …   Wikipedia