|
Physical Constant
|
Value
|
|
Absolute zero
|
-273.15 oC
|
|
Acceleration of free fall, standard
|
9.80665 m/s2
|
|
Atomic mass unit
|
1.6605402*10-27 kg
|
|
Avogadro constant
|
6.0221367*1023 1/mol
|
|
Base of natural logarithms
|
2.718281828
|
|
Boltzmann constant
|
1.380658*10-23 J/K
|
|
Classical electron radius
|
2.81794092*10-15 m
|
|
Electron mass
|
9.1093897*10-31 kg
|
|
Electron-proton mass ratio
|
5.44617013*10-4
|
|
Electronvolt
|
1.6021892*10-19 J
|
|
Elementary charge
|
1.60217733*10-19 C
|
|
Faraday constant
|
96485.309 C/mol
|
|
First radiation constant
|
3.7417749*10-16 W m2
|
|
Molar gas constant
|
8.314510 J/mol K
|
|
Molar volume
|
(Ideal gas, T = 273.15 K, p = 101.325 kPa)
|
|
Newtonian constant of gravitation
|
6.67259*10-11 N m2/kg2
|
|
Permeability of vacuum
|
12.566370614*10-7 N/A2
|
|
Permittivity of vacuum
|
8.854187817*10-12 F/m
|
|
PI
|
3.141592654
|
|
Planck constants
|
6.6260755*10-34 J s
|
|
Second radiation constant
|
0.01438769 m K
|
|
Solar constant
|
1400 W/m2
|
|
Speed of light in vacuum
|
299792458 m/s
|
|
Speed of sound in air at STP
|
340 m/s
|
|
Standard pressure
|
101325 Pa
|
