# Define the following term : Mole fraction

Mole fraction : It is the ratio of number of moles of a particular component to the total number of moles of all the components
Eg : Mole fraction of component A
$x_A=\large\frac{x_A}{x_A+x_B}$
Where $x_A$ is the number of moles of component A and $x_B$ is the number of moles of component B