.. 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`
