3473-11 Lecture Outline 19

3473-11 Lecture Outline 19 - 19 1 of 1 CHE 3473 Fa11...

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19 – 1 of 1 CHE 3473 – Fa11 Whiteley Lecture 19 (10/5/11) Assigned Reading Residual properties, calculation of U , H , Smith, Van Ness, Abbott 7 th ed. (SVNA7) and S for liquids and real gases Ch. 6, pp. 208 - 220 Assignments Handouts (on web unless stated otherwise) HW 6 due HW 7 assigned; due Wed, 10/12 Outline 1. Complete Lecture 18. 2. Useful expressions used to calculate U , H , and S from fundamental property relations and Maxwell’s equations 3. Special attribute of Gibbs energy, G . 4. Definition of residual properties. 5. Calculation of residual properties from P , V , T data 6. FINALLY; calculation of U , H , and S for liquids and real gases. Key Concepts 1. Changes in H and S for liquids are calculated from ( ) VdP T dT C dH p β + = 1 (6.28) VdP T dT C dS p = (6.29) where and V are weak functions of pressure and are usually assumed constant at appropriate average values when integrating (6.28) and (6.29). 2. Definition of a generic residual property:
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This note was uploaded on 10/11/2011 for the course CHE 3473 taught by Professor Staff during the Spring '08 term at Oklahoma State.

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