Chemistry Unit 4 3.0 / 5 based on 1 rating ? ChemistryA2/A-levelOCR Created by: Emily HotsonCreated on: 26-03-13 19:25 Rate of Reaction The change in concentration of a reactant or product per unit time. 1 of 6 Initial Rate of Reaction The change in concentration of a reactant, or product, per unit time at the start of the reaction when t=0. 2 of 6 The Order The power to which the concentration of the reactant is raised in the rate equation. 3 of 6 The Overall Order of Reaction The sum of the individual orders. 4 of 6 Rate Constant, k The constant that links the rate of reaction with the concentrations of the reactants raised to the powers of their orders in the rate equation. 5 of 6 Half-life The time taken for the concentration of the reactant to reduce by half. 6 of 6
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