Important physical constants
1. State important physical constants.
Solution:
Important physical constants:
| Normal gravitational acceleration |
gn = 9.806 m·s-2 |
| Gravitational constant |
κ = 6.67·10-11 N·m2·kg-2 |
| Mass of the Earth |
ME = 5.97·1024 kg |
| Radius of the Earth |
RE = 6.378·106 m |
| Mass of the Sun |
MS = 2·1030 kg |
| Radius of the Sun |
RS = 6.96·108 m |
| Astronomical unit |
1 AU = 1.496·1011 m |
| Normal atmospheric pressure |
p0 = 101 325 Pa |
| Atomic mass constant |
mu = 1.66·10-27 kg |
| Avogadro constant |
NA = 6.022·1023 mol-1 |
| Boltzmann constant |
k = 1.38·10-23 J·K-1 |
| Molar gas constant |
Rm = 8.314 J·K-1·mol-1 |
| Rest mass of electron |
me = 9.1·10-31 kg |
| Rest mass of proton |
mp = 1.672·10-27 kg |
| Rest mass of neutron |
mn = 1.674·10-27 kg |
| Electric charge of electron (proton) |
|e| = 1.602·10-19 C |
| Faraday constant |
F = 9.65·104 C·mol-1 |
| Absolute zero |
T0 = 0 K = -273.15 °C |
| Vacuum permittivity |
ε0 = 8.854·10-12 F·m-1 |
| Vacuum permeability |
μ0 = 4π·10-7 H·m-1 (N·A-2) |
| Speed of light in vacuum |
c = 3·108 m·s-1 |
| Planck constant |
h = 6.625·10-34 J·s |