= Extent of reaction
{wiki=Extent_of_reaction}
The extent of reaction is a concept used in chemical thermodynamics and reaction kinetics to quantify the progress of a chemical reaction. It is often denoted by the symbol \\( \\xi \\) (xi) and represents the amount by which a reaction has proceeded relative to its stoichiometry. Mathematically, the extent of reaction is defined as a variable that describes the change in the number of moles of reactants and products during a reaction.
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