Mixture mass equals sum of component masses
===========================================

The mass of a mixture of fluids is equal to the sum of the masses of the components of
the mixture.

**Conditions:**

#. Mixture in a closed impenetrable volume, that is, its molecules cannot leave it and
   they are always inside;
#. Mass is not transformed to energy, for example due to annihilation.

**Links:**

#. `Engineering LibreTexts, Composition on a Mass Basis <https://eng.libretexts.org/Bookshelves/Introductory_Engineering/Basic_Engineering_Science_-_A_Systems_Accounting_and_Modeling_Approach_(Richards)/03%3A_Conservation_of_Mass/3.04%3A_Mixture_Composition>`__.

..
    TODO: fix file name

.. py:currentmodule:: symplyphysics.laws.conservation.mixture_mass_equal_sum_of_components_masses

.. py:data:: mixture_mass

    :attr:`~symplyphysics.symbols.basic.mass` of the mixture.

Symbol:
    :code:`m`

Latex:
    :math:`m`

Dimension:
    :code:`mass`


.. py:data:: component_mass

    :attr:`~symplyphysics.symbols.basic.mass` of the :math:`i`-th component.

Symbol:
    :code:`m[i]`

Latex:
    :math:`{m}_{i}`

Dimension:
    :code:`mass`


.. py:data:: law

    :code:`m = Sum(m[i], i)`


    Latex:
        .. math::
            m = \sum_i {m}_{i}