Appendix D – Fundamental Physical Constants

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Fundamental Physical Constants

Name and Symbol

Value

atomic mass unit (amu)

1.6605402 × 10−27 kg

Avogadro’s number

6.0221367 × 1023 mol−1

Boltzmann’s constant (k)

1.380658 × 10−23 J K−1

charge-to-mass ratio for electron (e/me)

1.75881962 × 1011 C kg−1

electron charge (e)

1.60217733 × 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

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)

6.6260755 × 10−34 J s

proton rest mass (mp)

1.6726231 × 10−27 kg

Rydberg constant (R)

1.0973731534 × 107 m−1 = 2.1798736 × 10−18 J

speed of light (in vacuum) (c)

2.99792458 × 108 m s−1

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