Infinitesimal work in quasistatic process
=========================================

For a process in a closed system, occuring slowly enough for it to be quasi-static (i.e. the system
remains in internal physical, but not necessarily chemical, thermodynamic equilibrium), the infinitesimal
increment of work done *by* the system is related to the pressure inside the system and the infinitesimal
increment of volume of the system.

**Notation:**

#. :math:`\delta` (:code:`delta`) denotes that the increment is an inexact, path-dependent differential.
#. :math:`d` denotes that the increment is an exact, path-independent differential.

**Links:**

#. `Wikipedia <https://en.wikipedia.org/wiki/Work_(thermodynamics)#Pressure%E2%80%93volume_work>`__.

.. py:currentmodule:: symplyphysics.laws.thermodynamics.infinitesimal_work_in_quasistatic_process

.. py:data:: work_done_by_system

    Infinitesimal increment of :attr:`~symplyphysics.symbols.basic.work` done *by* the system.

Symbol:
    :code:`delta(W)`

Latex:
    :math:`\delta W`

Dimension:
    :code:`energy`


.. py:data:: pressure

    :attr:`~symplyphysics.symbols.classical_mechanics.pressure` inside the system.

Symbol:
    :code:`p`

Latex:
    :math:`p`

Dimension:
    :code:`pressure`


.. py:data:: volume_change

    Infinitesimal increment of :attr:`~symplyphysics.symbols.classical_mechanics.volume` of the system.

Symbol:
    :code:`dV`

Latex:
    :math:`dV`

Dimension:
    :code:`volume`


.. py:data:: law

    :code:`delta(W) = p * dV`


    Latex:
        .. math::
            \delta W = p dV