# What is partial pressure and how is it used?

##### 1 Answer

#### Explanation:

...........if it alone occupied the container. And the total pressure is the sum of the individual partial pressures.......

The total pressure is always the sum of the partial pressures.

The practical application of this is that the partial pressures in gaseous mixtures are always state functions of temperature.

i.e.

Because

.........the partial pressure thus represents the mole fraction.