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From Bioblast

high-resolution terminology - matching measurements at high-resolution



Volume V is a derived quantity based on the SI base quantity length [m] and is expressed in terms of SI base units in the derived unit cubic meter [m3]. The liter [L = dm3] is a conventional unit of volume for concentration and is used for most solution chemical kinetics. The volume V contained in a system (experimental chamber) is separated from the environment by the system boundaries; this is called the volume of the system, and described in practical language as big/small (derived from length, height) or voluminous. Systems are defined at constant volume or constant pressure. For a pure sample S, the volume VS of the pure sample equals the volume V of the system, VS = V. For sample s in a mixture, the ratio VsV-1 is the nondimensional volume fraction s of sample s. Quantities divided by volume are concentrations of sample s in a mixture, such as count concentration CX = NXV-1 [x路L-1], and amount of substance concentration CB = nBV-1 [mol路L-1]. Mass concentration is density s = msV-1 [kg路L-1]. In closed compressible systems (with a gas phase), the concentration of the gas increases, when pressure-volume work is performed on the system.

Abbreviation: V [m3]; 1 m3 = 1000 L

Reference: BEC 2020.1, Gnaiger MitoFit Preprints 2020.4

Communicated by Gnaiger E (2020-05-28) last update 2020-11-25


Conversion table: liter [L], cubic meter [m3], and mass [kg] for a density H2O = 1 kg路dm-3. See SI prefixes.
Volume Volume Volume Volume Mass Mass Mass
[L] [L] [m3] [m3] [kg] [g] [g]
1 kL 103 L 1 m3 1 m3 103 kg 106 g 1 Mg
1 L 1 L 10-3 m3 1 dm3 1 kg 103 g 1 kg
1 mL 10-3 L 10-6 m3 1 cm3 10-3 kg 1 g 1 g
1 碌L 10-6 L 10-9 m3 1 mm3 10-6 kg 10-3 g 1 mg
1 nL 10-9 L 10-12 m3 10-3 mm3 10-9 kg 10-6 g 1 碌g
1 pL 10-12 L 10-15 m3 10-6 mm3 10-12 kg 10-9 g 1 ng
1 fL 10-15 L 10-18 m3 1 碌m3 10-15 kg 10-12 g 1 pg
1 aL 10-18 L 10-21 m3 10-3 碌m3 10-18 kg 10-15 g 1 fg


Bioblast linkReferenceYear
Bureau International des Poids et Mesures (2019) The International System of Units (SI). 9th edition:117-216. ISBN 978-92-822-2272-02019
Gnaiger E (2020) Mitochondrial pathways and respiratory control. An introduction to OXPHOS analysis. 5th ed. 2020.2
Gnaiger E (2021) The elementary unit 鈥 canonical reviewer's comments on: Bureau International des Poids et Mesures (2019) The International System of Units (SI) 9th ed.
Gnaiger E et al 鈥 MitoEAGLE Task Group (2020) Mitochondrial physiology. 2020.1



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Molar mass
Barometric pressure
Chemiosmotic pressure
Gas pressure
Osmotic pressure
Oxygen pressure
Solubility = concentration/pressure
Solubility factor
Oxygen solubility
Boltzmann constant
Gas constant
Related keyword lists
Keywords: Oxygen signal
Keywords: Normalization


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MitoPedia concepts: MiP concept, Ergodynamics