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Volume
Description
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 [m^{3}]. The liter [L = dm^{3}] 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 V_{S} of the pure sample equals the volume V of the system, V_{S} = V. For sample s in a mixture, the ratio V_{s}·V^{-1} is the nondimensional volume fraction Φ_{s} of sample s. Quantities divided by volume are concentrations of sample s in a mixture, such as count concentration C_{X} = N_{X}·V^{-1} [x·L^{-1}], and amount of substance concentration C_{B} = n_{B}·V^{-1} [mol·L^{-1}]. Mass concentration is density ρ_{s} = m_{s}·V^{-1} [kg·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 [m^{3}]; 1 m^{3} = 1000 L
Reference: BEC 2020.1
Communicated by Gnaiger E (2020-05-28)
References
Bioblast link | Reference | Year |
---|---|---|
Bureau International des Poids et Mesures 2019 The International System of Units (SI) | Bureau International des Poids et Mesures (2019) The International System of Units (SI). 9th edition:117-216 ISBN 978-92-822-2272-0. | 2019 |
MitoFit 2020.4.v0 | Gnaiger Erich (2020) A X-mass Carol. Account of the elementaries of Body Mass Excess. MitoFit Preprint Arch 2020.4.v0. | |
BEC 2020.1 doi10.26124bec2020-0001.v1 | Gnaiger Erich et al ― MitoEAGLE Task Group (2020) Mitochondrial physiology. Bioenerg Commun 2020.1. doi:10.26124/bec:2020-0001.v1. | 2020 |
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