Medical dictionary. 2011.
Arrhenius theory — ▪ chemistry theory, introduced in 1887 by the Swedish scientist Svante Arrhenius (Arrhenius, Svante August), that acids (acid) are substances that dissociate in water to yield electrically charged atoms or molecules, called ions (ion), one… … Universalium
Arrhenius theory of dissociation — noun (chemistry) theory that describes aqueous solutions in terms of acids (which dissociate to give hydrogen ions) and bases (which dissociate to give hydroxyl ions); the product of an acid and a base is a salt and water • Syn: ↑theory of… … Useful english dictionary
theory of dissociation — noun (chemistry) theory that describes aqueous solutions in terms of acids (which dissociate to give hydrogen ions) and bases (which dissociate to give hydroxyl ions); the product of an acid and a base is a salt and water • Syn: ↑theory of… … Useful english dictionary
theory of electrolytic dissociation — noun (chemistry) theory that describes aqueous solutions in terms of acids (which dissociate to give hydrogen ions) and bases (which dissociate to give hydroxyl ions); the product of an acid and a base is a salt and water • Syn: ↑theory of… … Useful english dictionary
Arrhenius — [ä rā′nē oos; ] E [ ə rā′nē əs] Svante August [svän′te ou′goost] 1859 1927; Swed. physical chemist: first to present the theory of ionization … English World dictionary
Arrhenius equation — The Arrhenius equation is a simple, but remarkably accurate, formula for the temperature dependence of the rate constant, and therefore, rate of a chemical reaction. [http://www.iupac.org/goldbook/A00446.pdf Arrhenius equation] IUPAC Goldbook… … Wikipedia
Arrhenius, Svante August — ▪ Swedish chemist Introduction born Feb. 19, 1859, Vik, Swed. died Oct. 2, 1927, Stockholm Swedish physicist and physical chemist known for his theory of electrolytic dissociation and his model of the greenhouse effect. In 1903 he was awarded… … Universalium
Arrhénius — Svante August Arrhenius Pour les articles homonymes, voir Arrhenius. Svante August Arrhenius Svante August Arrhe … Wikipédia en Français
Arrhenius , Svante August — (1859–1927) Swedish physical chemist Arrhenius was born in Wijk, near Uppsala, Sweden. He originally went to Uppsala University to study chemistry, changing later to physics. Finding the standard mediocre, he transferred to Stockholm in 1881 to… … Scientists
theory — A reasoned explanation of known facts or phenomena that serves as a basis of investigation by which to seek the truth. SEE ALSO: hypothesis, postulate. [G. theoria, a beholding, speculation, t., fr. theoros, a beholder] adsorption t. of narcosis… … Medical dictionary
