Reaction Rates and Equilibrium

Flashcard maker : Keisha White
activated complex
a temporary arrangement of interacting chemical species that is an intermediate between reactants and products
transition state
the state of a system (or of the individual species) between reactants and product 
activation energy
the energy barrier that must be overcome for a reaction to occur
catalyst   (KA-tl-uhst)
a substance present during a chemical reaction that speeds up the reaction but is not used up or changed during the reaction
inhibitor
a physical or chemical component of a system that prevents the free interaction of reactant molecules
transition state
the state of a system (or of the individual species) between reactants and product
collision theory
a body of scientific evidence supporting the statement that chemical reactions and reaction rates are based on the physical interactions of molecules in motion.
reversible reaction
a reaction in which there is a dynamic equilibrium between products and reactants
chemical equilibrium
the process by which the reactants form products and products form reactants at equal rates
equilibrium constant
the ratio between the concentrations of the products and the concentrations of the reactants
Le Chatelier’s principle
factors such as changes in pressure or concentration will affect the equilibrium of a system in predictable ways
spontaneous reaction
a reaction that will process without (much) outside influence and that will result in a relatively substantial amount of product
Gibbs free energy
the energy that is released during a spontaneous reaction that is available to do work
entropy ; (EN-truh-pee)
the randomness of any physical system

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