Order of reaction — In chemical kinetics, the order of reaction with respect to certain reactant, is defined as the power to which its concentration term in the rate equation is raised [1]. For example, given a chemical reaction 2A + B → C with a rate equation r =… … Wikipedia
High energy X-rays — or HEX rays are very hard X rays, with 80 keV 1000 keV typically one order of magnitude higher in energy than conventional X rays (and well into the gamma ray energies of over 120 keV). They are produced at modern synchrotron radiation sources… … Wikipedia
reaction mechanism — Introduction in chemical reactions (chemical reaction), the detailed processes by which chemical substances are transformed into other substances. The reactions themselves may involve the interactions of atoms (atom), molecules (molecule),… … Universalium
Reaction rate — Iron rusting a chemical reaction with a slow reaction rate. Wood … Wikipedia
Reaction to the 2005-2006 Fijian political crisis — The crisis that saw a virtual breakdown in relations between Fiji s government and military forces in late 2005 and early 2006, generated fears of civil unrest and even a military coup. The dismissing of Lieutenant Colonel Jone Baledrokadroka,… … Wikipedia
High Seas Fleet — High Seas Fleet … Wikipedia
Réaction en chaîne (nucléaire) — Pour les articles homonymes, voir Réaction en chaîne. Schéma d une réaction en chaîne de fission nucléaire 1. Un atome d uranium 235 absorbe un neutron … Wikipédia en Français
Reaction Engines SABRE — infobox rocket engine imsize=220 caption=A model of the SABRE name=Reaction Engines SABRE country of origin=UK status=R D type=liquid fuel=Liquid hydrogen oxidiser=LOX cycle=combined cycle precooled jet engine + closed cycle rocket engine… … Wikipedia
Reaction intermediate — A reaction intermediate or an intermediate is a molecular entity that is formed from the reactants (or preceding intermediates) and reacts further to give the directly observed products of a chemical reaction. Most chemical reactions are stepwise … Wikipedia
Order of the Star in the East — The Order of the Star in the East (OSE) was an organization established by the leadership of the Theosophical Society at Adyar, India, from 1911 to 1927. Its mission was to prepare the world for the expected arrival of a messianic entity, the so… … Wikipedia
high-pressure phenomena — ▪ physics Introduction changes in physical, chemical, and structural characteristics that matter undergoes when subjected to high pressure. pressure thus serves as a versatile tool in materials research, and it is especially important in… … Universalium
