Page 602 - SUBSEC October 2017_Neat

LIST OF PHYSICAL CONSTANTS (cont’d)

-1
Permittivity of free space ε0 = 8.85 x 10 -12 F m

-34
The Planck constant h = 6.63 x 10 J s

-27
Unified atomic mass constant u = 1.66 x 10 kg

-27
Rest mass of proton mp = 1.67 x 10 kg

-1
Molar gas constant R = 8.31 J K mol -1

-2 -4
-8
Stefan- Boltzmann constant σ = 5.67 x 10 W m K

-27
Mass of neutron m n = 1.67 x 10 kg

CXC A16/U2/17 102