# Question: show that the pressure of a multicomponent simple ideal gas...

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Show that the pressure of a multicomponent simple ideal gas can be written as the sum of partial pressures Pj where Pj ≡ NjRT/V . These partial pressure are purely formal quantities not subject to experimental observation. From the mechanistic viewpoint of kinetic theory the partial pressure is the contribution to the total pressure that results from bombardment of the wall by molecules of species j; a distinction that can be made only when the molecules are noninteracting, as in an ideal gas.