Physical Constants - 2001.11.20






Physical Constants










Quantity
Symbol     
Value
Dimension   





Absolute
temperature     
  T
T [°C] +
273.16     
(kelvin)

Avogadro's number
  N
6.022 × 1023
1/mol

Electric permittivity
  
 
 

   for free space
eo
8.854
C/(V·m)

Elementary charge
  e
1.602 × 10-19
C

Faraday's constant
  F
9.648 × 104
C/mol

Gas constant
  R
1.987
cal/(K·mol)

   (in energy
units)
 
8.315
J/(K·mol)

Joule
  J
1
kg·m2/s2

 
 
1
V·C = W·s

 
 
0.2389
cal

Magnetic permeability
  
 
 

   for free space
  µ
4p·10-7
H/m