Amount of mixture is sum of amounts of components

The total amount of the mixture is equal to the sum of the amounts of each of the components.

Conditions:

1. Mixture in a closed impenetrable volume, that is, molecules/atoms cannot leave it and they are always inside;

2. Mass is not transformed to energy, for example due to annihilation.

Links:

1. Engineering LibreTexts, Composition on a Molar Basis.

amount_of_mixture

amount_of_substance in the mixture.

Symbol:

n

Latex:

\(n\)

Dimension:

amount_of_substance

amount_of_component

amount_of_substance in the \(i\)-th component.

Symbol:

n[i]

Latex:

\({n}_{i}\)

Dimension:

amount_of_substance

law

n = Sum(n[i], i)

Latex:

\[n = \sum_i {n}_{i}\]