first-order reaction

noun
: a chemical reaction in which the rate of reaction is directly proportional to the concentration of the reacting substance — compare order of a reaction

Useful english dictionary. 2012.

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  • first-order reaction — pirmojo laipsnio reakcija statusas T sritis chemija apibrėžtis Reakcija, kurios greitis proporcingas reaguojančiosios medžiagos koncentracijai pirmuoju laipsniu. atitikmenys: angl. first order reaction rus. реакция первого порядка …   Chemijos terminų aiškinamasis žodynas

  • First-order — First or der, a. decaying at an exponential rate; a mathematical concept applied to various types of decay, such as radioactivity and chemical reactions. Note: In first order decay, the amount of material decaying in a given period of time is… …   The Collaborative International Dictionary of English

  • pseudo first order — First order First or der, a. decaying at an exponential rate; a mathematical concept applied to various types of decay, such as radioactivity and chemical reactions. Note: In first order decay, the amount of material decaying in a given period of …   The Collaborative International Dictionary of English

  • order of a reaction — a number that relates the rate of a chemical reaction with the concentrations of the reacting substances : the sum of all the exponents of the terms expressing concentrations of the molecules or atoms determining the rate of the reaction compare… …   Useful english dictionary

  • Reaction half life — The reaction half life in chemical kinetics describes the time needed for half of a reactant in a chemical reaction to be depleted. It is the same as the nuclear half life involved in nuclear decay, which is a first order reaction.ee also main… …   Wikipedia

  • Order of Canada — Insignia of a Member of the Order of Canada Awarded by the …   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

  • 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

  • Reaction rate — Iron rusting a chemical reaction with a slow reaction rate. Wood …   Wikipedia

  • reaction — 1. The response of a muscle or other living tissue or organism to a stimulus. 2. The color change effected in litmus and certain other organic pigments by contact with substances such as acids or alkalies; also the property that such substances… …   Medical dictionary

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