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Chem unit 7 vocab

TermDefinition
Entropy measure of degree of randomness as particles move;
Chemical Equilibrium Rate of forward reaction equals rate of reverse reaction and the concentrations of products and reactants remain unchanged
Activated Complex the maximum energy point along the reaction path
Activation Energy the minimum energy that must be input to a chemical system with potential reactants to cause a chemical reaction
Collision Theory qualitatively explains how chemical reactions occur and why reaction rates differ for different reactions
Catalyst a substance that speeds up a chemical reaction, but is not consumed by the reaction
Reversible reaction Products can react to re-form the reactants
LeChatelier's Principle States that is a stress is applied to a system at equilibrium the system shifts in the direction that relieves the stress
Reaction rate change in concentration of a reactant or product per unit of time
Inhibitor slows down reaction rate or prevents reaction from happening
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