Gas constant

From Bioblast

high-resolution terminology - matching measurements at high-resolution

Gas constant


Table Physical constants.png

The gas constant, R = 8.314462618 J·mol-1·K-1, has the SI unit for energy per amount per temperature. R is primarily known from the ideal gas equation, pV = nRT or p = cRT. Therefore, RT is the ratio of pressure p and concentration c.

R = f·F, the electrochemical constant f times the Faraday constant F.

R = k·NA, the Boltzmann constant k times the Avogadro constant NA.

Abbreviation: R [J·mol-1·K-1]

Reference: Gnaiger 2020 BEC MitoPathways

Table RT.png
Communicated by Gnaiger E (2018-10-18) last update 2020-11-24

0 °C = 273.15 K
ln(10) = 2.302585093
» See: Chemical potential


  1. 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«
  2. Gnaiger E (2020) Mitochondrial pathways and respiratory control. An introduction to OXPHOS analysis. 5th ed. - »Bioblast link«


Click to expand or collaps
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
SI and related concepts
» International System of Units
» elementary unit x
» SI prefixes
» International Union of Pure and Applied Chemistry, IUPAC
» entity
» quantity
» dimension
» format
» motive unit
» iconic symbols


Click to expand or collaps
Bioblast links: Concentration and pressure - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>

MitoPedia concepts: Ergodynamics 

Cookies help us deliver our services. By using our services, you agree to our use of cookies.