NAME
SYMBOL
VALUE
Absolute Zero
-273.15 ° C
Air, Critical Temperature of
-190 °C
183 K
Air, Density of
0.7734 m3 kg-1
1.2929 kg m-3
Air, Viscosity of (20°C)
η0
1.8 × 10-5 N s m-2
Atmospheric Pressure
1.01325 × 105 N m-2
1.01325 bar
14.7 lbf in-2
Carbon-14 Half-life of
T
5570 years
Conductance, Quantized Hall
e2/h
3.87404614 × 10-5 S
Constant, Fermi Coupling
GF/(ħc)3
1.16639(1) × 10-5 GeV-2
Constant, Gas
R
8.314 J K-1 mol-1
Constant, Verdet's (Light at 589nm in water)
0.000477 rad A-1