.. py:currentmodule:: cantera Physical Constants ================== These values are the same as those in the Cantera C++ header file ct_defs.h. .. data:: avogadro Avogadro's Number, kmol\ :sup:`-1` .. data:: gas_constant The ideal gas constant, J kmol\ :sup:`-1` K\ :sup:`-1` .. data:: one_atm One atmosphere, Pa .. data:: boltzmann Boltzmann constant, m\ :sup:`2` kg s\ :sup:`-2` K\ :sup:`-1` .. data:: planck Planck constant, J s .. data:: stefan_boltzmann The Stefan-Boltzmann constant, W m\ :sup:`-2` K\ :sup:`-4` .. data:: electron_charge The charge on an electron, C .. data:: electron_mass The mass of an electron, kg .. data:: faraday Faraday constant, C kmol\ :sup:`-1` .. data:: light_speed Speed of Light, m s\ :sup:`-1` .. data:: permeability_0 Permeability of free space, m kg s\ :sup:`-2` A\ :sup:`-2` .. data:: epsilon_0 Permittivity of free space, s\ :sup:`4` A\ :sup:`2` m\ :sup:`-3` kg\ :sup:`-1`