Reduced pressure
================

See :ref:`vdw_reduced_units_def`.

**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_pressure

.. py:data:: reduced_pressure

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

Symbol:
    :code:`p_r`

Latex:
    :math:`p_{r}`

Dimension:
    :code:`dimensionless`


.. py:data:: pressure

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

Symbol:
    :code:`p`

Latex:
    :math:`p`

Dimension:
    :code:`pressure`


.. py:data:: critical_pressure

    Critical :attr:`~symplyphysics.symbols.classical_mechanics.pressure`. See :doc:`laws.thermodynamics.equations_of_state.van_der_waals.critical_pressure`.

Symbol:
    :code:`p_c`

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

Dimension:
    :code:`pressure`


.. py:data:: law

    :code:`p_r = p / p_c`


    Latex:
        .. math::
            p_{r} = \frac{p}{p_\text{c}}