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Unit 15

Vocabulary for Chemistry

TermDefinition
Kinetics The study of the factors that determine how rapidly reaction occur
Collision theory the rate of the reaction is proportional to the number of collisions that occur each second between the reactants
Effective Collision A collision in which the colliding particles aproach eachother at the proper angle and with the proper amount of energy
Catalyst A substance, usually used in small quantities compared to the reactants, that modifies or increases the rate of a reaction without being consumed in the process
inhibitor A substance that stops a chemical reaction
Enzyme Any of numerous proteins produced by living organisms and serving as biochmemical catalysts
Activation Energy the minimun kinetic energy that must be possessed by the reactants in order to give effective collision
Potential energy diagram a plot of the change of potentian energy that occurs during chemical reactions
Transition state The momment during a reaction when the species involved has aquired the minimun amount of potential energy required for a successful reaction. Point of highest potential energy
Reaction rate How quickly the reactants disappear and the products form
Reversable reaction A reaction in which the equilibrium constant is such that the reaction proceeds at a detectable rate in either directions under appropriate conditions. Results in equilibrium mixture of reactants and products.
Le Chatelier's Principle when a system that is in dynamic equilibrium is disturbed, the system undergoes a change that counteracts the disturbance and, if possible, restores the equilibrium.
stress An applied force or system of forces that tends to shift a reaction
Endothermic Characterized by or causing the absorption of heat
Exothermic Releasing heat
Created by: ii_UnkownWaterz
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