Partial Pressure - Ideal Gas Mixtures

Ideal Gas Mixtures

Ideally the ratio of partial pressures is the same as the ratio of molecules. That is, the mole fraction of an individual gas component in an ideal gas mixture can be expressed in terms of the component's partial pressure or the moles of the component:

and the partial pressure of an individual gas component in an ideal gas can be obtained using this expression:

where:
= mole fraction of any individual gas component in a gas mixture
= partial pressure of any individual gas component in a gas mixture
= moles of any individual gas component in a gas mixture
= total moles of the gas mixture
= total pressure of the gas mixture

The mole fraction of a gas component in a gas mixture is equal to the volumetric fraction of that component in a gas mixture.

Read more about this topic:  Partial Pressure

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