1.

At low pressure, the vander Waals equation for 1 mole become:

Answer»

<P>`PV_(m)=RT`
`P(V_(m)-B)=RT`
`(P+(a)/(V_(m)^(2)))V_(m)=RT`
`P=(RT)/(V_(m))+(a)/(V_(m)^(2))`

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