Difference between revisions of "Boltzmann constant"
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{{MitoPedia | {{MitoPedia | ||
|abbr=''k'' | |abbr=''k'' [J·x<sup>-1</sup>·K<sup>-1</sup>] | ||
|description=[[File:Table Physical constants.png|left| | |description=[[File:Table Physical constants.png|left|400px|thumb|]] The '''Boltzmann constant''' ''k'' has the SI unit [J·K<sup>-1</sup>] (IUPAC), but more strictly the units for energy per particles per temperature is [J·x<sup>-1</sup>·K<sup>-1</sup>]. | ||
|info=[[ | |||
''k'' = ''f''·''e''<sup>-1</sup>, the [[electrochemical constant]] ''f'' times the [[elementary charge]] ''e''. | |||
''k'' = ''R''·''N''<sub>A</sub><sup>-1</sup>, the [[gas constant]] ''R'' divided by the [[Avogadro constant]] ''N''<sub>A</sub>. | |||
|info=[[Bureau International des Poids et Mesures 2019 The International System of Units (SI)]] | |||
}} | }} | ||
Communicated by [[Gnaiger E]] (2018-10-18) last update 2020-11-24 | |||
{{Keywords: SI base units}} | |||
{{Keywords: Concentration and pressure}} | |||
== References == | |||
::::# Bureau International des Poids et Mesures (2019) The International System of Units (SI). 9th edition:117-216 ISBN 978-92-822-2272-0. - [[Bureau International des Poids et Mesures 2019 The International System of Units (SI) |»Bioblast link«]] | |||
::::# Gnaiger E (2020) Mitochondrial pathways and respiratory control. An introduction to OXPHOS analysis. 5th ed. Bioenerg Commun 2020.2 - [[Gnaiger 2020 BEC MitoPathways |»Bioblast link«]] | |||
{{MitoPedia concepts | {{MitoPedia concepts | ||
|mitopedia concept=Ergodynamics | |mitopedia concept=Ergodynamics | ||
}} | }} | ||
Latest revision as of 12:46, 15 March 2022
Description
The Boltzmann constant k has the SI unit [J·K-1] (IUPAC), but more strictly the units for energy per particles per temperature is [J·x-1·K-1].
k = f·e-1, the electrochemical constant f times the elementary charge e.
k = R·NA-1, the gas constant R divided by the Avogadro constant NA.
Abbreviation: k [J·x-1·K-1]
Reference: Bureau International des Poids et Mesures 2019 The International System of Units (SI)
Communicated by Gnaiger E (2018-10-18) last update 2020-11-24
- Bioblast links: SI base units - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>
- Entity, count, and number, and SI base quantities / SI base units
Quantity name Symbol Unit name Symbol Comment elementary UX elementary unit [x] UX, UB; [x] not in SI count NX elementary unit [x] NX, NB; [x] not in SI number N - dimensionless = NX·UX-1 amount of substance nB mole [mol] nX, nB electric current I ampere [A] A = C·s-1 time t second [s] length l meter [m] SI: metre mass m kilogram [kg] thermodynamic temperature T kelvin [K] luminous intensity IV candela [cd]
- Fundamental relationships
- » Avogadro constant NA
- » Boltzmann constant k
- » elementary charge e
- » Faraday constant F
- » gas constant R
- » electrochemical constant f
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- Concentration
- » Volume
- » Activity
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- Solubility = concentration/pressure
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- » Boltzmann constant
- » Energy
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- » Gas constant
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References
- Bureau International des Poids et Mesures (2019) The International System of Units (SI). 9th edition:117-216 ISBN 978-92-822-2272-0. - »Bioblast link«
- Gnaiger E (2020) Mitochondrial pathways and respiratory control. An introduction to OXPHOS analysis. 5th ed. Bioenerg Commun 2020.2 - »Bioblast link«
MitoPedia concepts:
Ergodynamics