.. 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

.. data:: gas_constant

   The ideal gas constant in J/kmol-K

.. data:: one_atm

   One atmosphere in Pascals

.. data:: boltzmann

   Boltzmann constant

.. data:: planck

   Planck constant (J/s)

.. data:: stefan_boltzmann

   The Stefan-Boltzmann constant, W/m^2K^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

.. data:: light_speed

   Speed of Light (m/s).

.. data:: permeability_0

   Permeability of free space :math:`\mu_0` in N/A^2.

.. data:: epsilon_0

   Permittivity of free space (Farads/m = C^2/N/m^2)