Reaction step
Encyclopedia
A reaction step of a chemical reaction
is defined as: "An elementary reaction
, constituting one of the stages of a stepwise reaction
in which a reaction intermediate
(or, for the first step, the reactants) is converted into the next reaction intermediate
(or, for the last step, the products
) in the sequence of intermediates between reactants and products".
Chemical reaction
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Chemical reactions can be either spontaneous, requiring no input of energy, or non-spontaneous, typically following the input of some type of energy, such as heat, light or electricity...
is defined as: "An elementary reaction
Elementary reaction
An elementary reaction is a chemical reaction in which one or more of the chemical species react directly to form products in a single reaction step and with a single transition state....
, constituting one of the stages of a stepwise reaction
Stepwise reaction
A stepwise reaction is a chemical reaction with one or more reaction intermediates and involving at least two consecutive elementary reactions....
in which a reaction intermediate
Reaction intermediate
A reaction intermediate or an intermediate is a molecular entity that is formed from the reactants and reacts further to give the directly observed products of a chemical reaction. Most chemical reactions are stepwise, that is they take more than one elementary step to complete...
(or, for the first step, the reactants) is converted into the next reaction intermediate
Reaction intermediate
A reaction intermediate or an intermediate is a molecular entity that is formed from the reactants and reacts further to give the directly observed products of a chemical reaction. Most chemical reactions are stepwise, that is they take more than one elementary step to complete...
(or, for the last step, the products
Product (chemistry)
Product are formed during chemical reactions as reagents are consumed. Products have lower energy than the reagents and are produced during the reaction according to the second law of thermodynamics. The released energy comes from changes in chemical bonds between atoms in reagent molecules and...
) in the sequence of intermediates between reactants and products".