reaksjonsantallpartikkel
Reaksjonsantallpartikkel, a Norwegian term, translates to "reaction mole number" or "extent of reaction" in English. It is a concept used in chemical kinetics and thermodynamics to quantify the progress of a chemical reaction. Instead of focusing on the absolute amounts of reactants or products, the extent of reaction describes how much a reaction has proceeded relative to its stoichiometry. It is a convenient way to express the concentration or amount of any species involved in a reaction in a unified manner.
The extent of reaction, often denoted by the Greek letter xi (ξ), is defined such that the change
The concept is particularly useful when dealing with multiple simultaneous or consecutive reactions, as it allows