Science Constants

Science Constants

Constant	Symbol	Value in SI units
acceleration of free fall	g	9.806 65 m s^-2
Avogadro constant	L, LA.	6.0221367(36) x 10²⁶( kg-mole)^-1
Boltzmann constant	k=R/NA	1.380658(12) x 10^-23 J K^-1
Permittivity Of Free Space	e₀	8.854187 817 x 10^-12 F m^-1
electronic charge	e	1.602 177 33 (49) x 10^-19 C
electronic rest mass	m_e	9.1093897(54) x 10^-31 kg
Faraday constant	F	9.648 5309(29) x 10⁷ C( kg-mole)^-1
gas constant	R.	8.314 510(70) x 10³J K^-1( kg-mole)^-1
gravitational constant	G	6.672 59(85) x 10^-11 m³ kg^-1 s^-2
Loschmidt’s Number	NL	2.686 763(23) x 10²⁵ m^-3
magnetic constant	m₀	4 x (pi) x 10^-7 H m^-1
neutron rest mass	m_n	1.674 9286(10) x 10^-27 kg
Planck constant	h	6.626 0755(40) x 10^-34 J s
proton rest mass	m_p	1.672 6231(10) x 10^-27 kg
speed of light	c	2.997 924 58 x 10⁸ m s^-1
Stefan-Boltzmann constant	s	5.670 51(19) 10^-8 W m^-2 K^-4