Van't Hoff's law
Van't Hoff's law Van't Hoff's law [After J. H. van't Hoff, Dutch physical chemist.] (Phys. Chem.) The generalization that: when a system is in equilibrium, of the two opposed interactions the endothermic is promoted by raising the temperature, the exothermic by lowering it. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • van't Hoff's law — vant hȯfs n a statement in physical chemistry: the effect of a change in temperature on a system in equilibrium is to shift the equilibrium in the direction that acts to nullify the temperature change <according to van t Hoff s law, an… …   Medical dictionary

  • Van't Hoff's law — /vant ˈhɔfs lɔ/ (say vahnt hawfs law) noun the law which states that the osmotic pressure of a dilute solution is equal to the pressure which the solute would exert in the gaseous state, if it occupied a volume equal to the volume of the solution …   Australian English dictionary

  • van't hoff's law — ȯfs . äfs noun Usage: usually capitalized H Etymology: after Jacobus H. van t Hoff died 1911 Du. physical chemist : a statement in physical chemistry: for a system in equilibrium an increase in temperature increases the rate of the reaction… …   Useful english dictionary

  • van't Hoff's law rule — (vahnt hofsґ) [Jacobus Hendricus van t Hoff, Dutch chemist, 1852–1911; winner of the Nobel prize for chemistry in 1901] see under law and rule …   Medical dictionary

  • van't Hoff rule — the velocity of chemical reactions is increased twofold or more for each rise of 10°C in temperature; it is generally true when temperatures approximate those under which the reaction normally occurs. Called also van t Hoff s law. See also… …   Medical dictionary

  • Hoff's law — van t Hoff s l …   Medical dictionary

  • Van 't Hoff factor — In physical chemistry, the van t Hoff factor i is the number of moles of solute actually in solution per mole of solid solute added. Equivalently, i refers to the ratio of true molecular mass to calculated molecular methods by colligative methods …   Wikipedia

  • Hoff, Jacobus Henricus van 't — ▪ Dutch chemist Introduction born Aug. 30, 1852, Rotterdam, Neth. died March 1, 1911, Berlin, Ger.  Dutch physical chemist and first winner of the Nobel Prize for Chemistry (1901), for work on rates of chemical reaction, chemical equilibrium, and …   Universalium

  • Henry's law — may sometimes refer to Lenz s Law In chemistry, Henry s law is one of the gas laws, formulated by William Henry. It states that:: At a constant temperature, the amount of a given gas dissolved in a given type and volume of liquid is directly… …   Wikipedia

  • Law of mass action — For other uses, see Mass action (disambiguation). In Chemistry, the law of mass action is a mathematical model that explains and predicts behaviors of solutions in dynamic equilibrium. It can be described with two aspects: 1) the equilibrium… …   Wikipedia

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