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Physical Constants
             
QUANTITY   SYMBOL   VALUE   UNITS
Acceleration due to gravity at earth's surface   g   9.81   ms-2
Avogadro’s constant   NA   6.01023   mol-1
Boltzmann’s constant   k   1.310-23   JK-1
Coulomb constant   k   8.9109   Nm2C-2
Electron charge   e   1.610-19   C
Electron (rest) mass   9.110-31   kg
Molar heat capacities of a diatomic ideal gas  
  at constant pressure
  Cp   20.8   Jmol-1K-1
  at constant volume
  Cv   12.5   Jmol-1K-1
Neutron (rest) mass   1.6710-27   kg
Permeability of free space   µo   4p×10-7   TmA-1 (Hm-1)
Permittivity of free space   eo   8.810-12   C2N-1m-2 (Fm-1)
Planck's constant   h   6.610-34   Js
Proton (rest) mass       1.6710-27   kg
Specific heat capacity of water   cw   4200   Jkg-1K-1 (Jkg-1°C-1)
Specific latent heat of fusion of water   LF   3.3105   Jkg-1
Specific latent heat of vaporization of water   LV   2.2106   Jkg-1
Speed of light in vacuum   c   3.0108   ms-1
Stefan-Boltzmann constant   s   5.610-8   Wm-1K-4
Unified atomic mass unit   u   1.610-27   kg
Universal constant of gravitation   G   6.610-11   Nm2kg-2
Universal gas constant   R   8.31   Jmol-1K-1
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