Fundamental Physical Constants
| Name and Symbol | Value |
|---|---|
| Atomic mass unit (amu) | 1.6605402 × 10−27 kg |
| Avogadro’s number | 6.02214076 × 1023 mol−1 |
| Boltzmann’s constant (k) | 1.380649 × 10−23 J K−1 |
| Charge-to-mass ratio for electron (e/me) | 1.75881962 × 1011 C kg−1 |
| Fundamental unit of charge (e) | 1.602176634 × 10−19 C |
| Electron rest mass (me) | 9.1093897 × 10−31 kg |
| Faraday’s constant (F) | 9.6485309 × 104 C mol−1 |
| gas constant (R) | 8.205784 × 10−2 L atm mol−1 K−1 = 8.314510 J mol−1 K−1 = 0.08314510 L bar mol−1 K−1 |
| Molar volume of an ideal gas, 1 atm, 0 °C | 22.41409 L mol–1 |
| Molar volume of an ideal gas, 1 bar, 0 °C | 22.71108 L mol–1 |
| Neutron rest mass (mn) | 1.6749274 × 10−27 kg |
| Planck’s constant (h) | 6.62607015 × 10−34 J s |
| Proton rest mass (mp) | 1.6726231 × 10−27 kg |
| Rydberg constant (R) | 1.0973731568160 × 107 m−1 = 2.1798723611035 × 10−18 J |
| Speed of light (in vacuum) (c) | 2.99792458 × 108 m s−1 |