The species that are formed and decomposed during the mechanism, also called the intermediate.
The energy that must be added to the reactants to allow them to react and form the activated complex.
A chemical that is added to a reaction to eliminate steps in the mechanism and increase the reaction rate and decrease the activation energy without being consumed itself.
A collision between reactant particles that results in a chemical reaction taking place.
A system's state of disorder. Entropy increases as temperature increases. Entropy increases as a substance is heated from a solid to a liquid to a gas.
A system where the rate of forward change is equal to the rate of the reverse change.
Heat of reaction
The net gain or loss of potential energy during a chemical reaction.
A chemical that is added to a reaction to add steps to the mechanism and decrease the reaction rate and increase the activation energy without being consumed itself.
The pathway or series of steps a reaction takes on its way to forming a product.
A change that requires a constant input of energy to occur, or the change will stop or reverse itself.
The amount of reactant consumed per unit of time.
A change that, once started, continues the rest of the way on its own.