Rate Of Reaction Definitions Flashcards
The rate of a chemical reaction
The change in concentration per unit time of any one reactant or product
Instantaneous rate of reaction
The rate of reaction at any one particular time during the reaction
Catalyst
A substance that alters the rate of a chemical reaction but is not consumed in the reaction
Enzyme
A substance that is produced by a living cell and acts as a biological catalyst
Homogeneous catalysis
A catalysis in which both the reactants and the catalyst arein the same phase
Heterogeneous catalysis
A catalysis in which the reactants and the catalysts are in different phases
Autocatalysis
A catalysis in which one of the products of the reaction acts as a catalyst for the reaction
Catalytic converter
A device in the exhaust system of a motor vehicle which contains catalysts to convert pollutants in the exhaust gases to less harmful substances
Catalyst poison
A substance that makes a catalyst inactive
Effective collision
One that results in the formation of products
Activation energy
The minimum energy that colliding particles must have for a reaction to occur
Reaction Profile Diagram
A graph which shows the change in energy of a chemical reaction with time as the reaction progresses
