Laplace pressure of spherical shapes
====================================

Under the curved surface of a fluid, in addition to the internal pressure, additional pressure
is created due to the curvature of the surface. The excess pressure under the curved surface of
the fluid is called *Laplace pressure*.

**Links:**

#. `Wikipedia, second formula <https://en.wikipedia.org/wiki/Laplace_pressure>`__.

.. py:currentmodule:: symplyphysics.laws.thermodynamics.laplace_pressure_of_spherical_shapes

.. py:data:: laplace_pressure

    Excess :attr:`~symplyphysics.symbols.classical_mechanics.pressure` under the curved surface.

Symbol:
    :code:`P_L`

Latex:
    :math:`P_\text{L}`

Dimension:
    :code:`pressure`


.. py:data:: surface_tension

    :attr:`~symplyphysics.symbols.classical_mechanics.surface_tension` of the fluid.

Symbol:
    :code:`gamma`

Latex:
    :math:`\gamma`

Dimension:
    :code:`force/length`


.. py:data:: radius_of_curvature

    :attr:`~symplyphysics.symbols.basic.radius_of_curvature` of the surface.

Symbol:
    :code:`r`

Latex:
    :math:`r`

Dimension:
    :code:`length`


.. py:data:: law

    :code:`P_L = 2 * gamma / r`


    Latex:
        .. math::
            P_\text{L} = \frac{2 \gamma}{r}