Volume fraction (φA) is defined as
where VA is the volume of the specified component and the Vi are the volumes of all the components of a mixture prior to mixing.
Generalic, Eni. "Volume fraction." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. 2 Apr. 2025. <https://glossary.periodni.com>.
Glossary
Periodic Table