OUTLINE OF CHAPTER 8

OUTLINE OF CHAPTER 8 - OUTLINE OF CHAPTER 8 Multicomponent...

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OUTLINE OF CHAPTER 8 Multicomponent Systems!! We said that for one component systems, we need two variables to completely chatacterize it. For multicomponent systems, we expect Naïve expectation Observation Change of volume in mixing Change of Enthalpy in mixing That is:
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Let any property (Volume, enthalpy, etc) be represented by θ Then, we write: We also want θ to be homogeneous (intensive property) Then and So that as long as the relative amount of components is kept constant θ does not change. Then we write We will show that
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We take a derivative Multiplying by N 1 and using We get or Now take derivative w.r.t. N i (I not 1)
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Thus using and we get or THUS WE DEFINE PARTIAL MOLAR PROPERTY as follows So we can write
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Therefore and
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GENERALIZED GIBBS-DUHEM EQUATION We start with Is also called chemical potential We also write But Comparing we get
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But, Then But N θ can be considered a function of P and T . Then
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This note was uploaded on 08/31/2011 for the course CHE 3473 taught by Professor Staff during the Spring '08 term at Oklahoma State.

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OUTLINE OF CHAPTER 8 - OUTLINE OF CHAPTER 8 Multicomponent...

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