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Fundamental Physical Constants
In the course measuring physiological parameters, one often needs to make use of one or more fundamental physical constants. The following fundamental physical constants are commonly used in calculations involving physiological parameters. For a complete list as well as for the most up-to-date values, see the National Institutes of Standards and Technology.
Table of fundamental physical constants
Physical Constant Symbol Value Unit
Atomic mass unit amu or mu 1.660538921 × 10−27 kg
Avogadro's number NA 6.02214129 × 1023 mol−1
Boltzmann constant k 1.3806488 × 10−23 J K−-1
Elementary charge
(charge of an electron)
e 1.602176565 × 10−19 C
Electron mass me 9.10938291 × 10−31 kg
Electron volt eV 1.602176565 × 10−19 J
Faraday's constant F 96485.3365 C mol−1
Molar gas constant
(Universal gas constant)
R 8.3144621
J mol−1 K−1
cal mol−1 K−1
L atm mol−1 K−1
Planck's constant h 6.62606957 × 10−34 J s
Proton mass mp 1.672621777 × 10−27 kg
proton-electron mass ratio mp/me 1836.15267245

Posted: Sunday, January 5, 2014