Chemistry chapter 18

collision theory
atoms, ions and molecules can react to form products when they collide if the particles have enough kinetic energy
activation energy
the minimum energy that colliding particles must have in order to react
activated complex
an unstable arrangement of atoms that forms for a moment at the peak of the activation-energy barrier
a substance that increases the rate of reaction without itself undergoing chemical change
rate law
an expression for the rate of reaction in terms of the concentration of reactants
specific rate constant
a proportionally constant relating to the concentrations of reactants to the rate of the reaction
rate of chemical reaction
the amount of reaction that takes place in unit time
reversible reaction
one in which the conversion of reactants to products and the conversion of products to reactants occurs at the same time
chemical equilibrium
when the rates of the forward and reverse reactions are equal and the reaction has reached a state of balance
equilibrium constant
the ratio of product concentrations to reactant concentrations to the concentrations at equilibriums