Reduced volume
==============

See :ref:`vdw_reduced_units_def`.

**Note:**

#. Specific or molar volumes can be used in the right-hand side of the law.

**Links:**

#. `Wikipedia <https://en.wikipedia.org/wiki/Van_der_Waals_equation#Critical_point_and_corresponding_states>`__.

.. py:currentmodule:: symplyphysics.laws.thermodynamics.equations_of_state.van_der_waals.reduced_volume

.. py:data:: reduced_volume

    Reduced :attr:`~symplyphysics.symbols.classical_mechanics.volume` of the van der Waals fluid.

Symbol:
    :code:`V_r`

Latex:
    :math:`V_{r}`

Dimension:
    :code:`dimensionless`


.. py:data:: volume

    :attr:`~symplyphysics.symbols.classical_mechanics.volume` of the van der Waals fluid.

Symbol:
    :code:`V`

Latex:
    :math:`V`

Dimension:
    :code:`volume`


.. py:data:: critical_volume

    See :doc:`laws.thermodynamics.equations_of_state.van_der_waals.critical_molar_volume`
    and :attr:`~symplyphysics.symbols.classical_mechanics.volume`.

Symbol:
    :code:`V_c`

Latex:
    :math:`V_\text{c}`

Dimension:
    :code:`volume`


.. py:data:: law

    :code:`V_r = V / V_c`


    Latex:
        .. math::
            V_{r} = \frac{V}{V_\text{c}}