PHYSICAL CONSTANT
Speed of light C 3 x 108 m/s
Planck constant h 6.63 x 10-34 J s
hc 1242 eV-nm
Gravitation constant G 6.67 x 10-11m3 kg-1s-2
Boltzmann constant k 1.38 x 10-23 J/K
Molar gas constant R 8.314 J/(mol K)
Avogadro's number NA 6.023 x 10-23 mol-1
Charge of electron e 1.602 x 10-19C
Permeability of vacuum μ0 4π x 10
-7 N/A2
Permitivity of vacuum ϵ0 8.85 x 10-12F/m
Coulomb constant 4π ϵ0 1
9 x 10 N m2/C2
Faraday constant F 96485 C/mol
Mass of electron me 9.1 x 10-31kg
Mass of proton mp 1.6726 x 10-27kg
Mass of neutron mn 1.6749 x 10-27kg
Atomic mass unit u 1.66 x 10-27kg
Atomic mass unit u 931.49 MeV/c2
Stefan-Boltzmann constant σ 5.67 x 10
-8 W/(m2 K4)
Rydberg constant R∞ 1.097 x 107 m-1
Bohr magneton μB 9.27 x 10-24 J/T
Bohr radius a0 0.529 x 10-10 m
Standard atmosphere atm 1.01325 x 105Pa
Wien displacement b 2.9 x 10-3mKConstant