Fundamental Constants

Name Symbol Value
Avogadro's Number
N
6.022 x 1023 mol−1
Boltzmann's Constant
kb
 1.381 x 10−23J K−1
Electron Charge
e
1.602 x 10−19 C
Faraday's Constant
F = Ne
9.649 x 104 C mol electrons−1
Ideal Gas Constant
R = Nkb
8.314 J mol−1 K−1

0.08206 L atm mol−1 K−1

8.314 L kPa mol−1 K−1

Planck's Constant
h
6.626 x 10−34 J s
Rydberg Constant
R
1.097 x 107 m−1
Speed of Light (in vacuum)
c
2.998 x 108 m s−1
Standard Acceleration (due to gravity)
g
9.807 m s−2
Universal Gravitational Constant
G
6.674 x 10−11 m3 kg−1 s−2
Vacuum Permittivity
εo
8.854 x 10−12 C2 J−1 m−1
Mass of Electron
me
9.109 x 10−31 kg
Mass of Neutron
mn
1.675 x 10−27 kg
Mass of Proton
mp
1.673 x 10−27 kg