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A Unified Fundamental Equation for the Thermodynamic Properties of H2 0

By Hill, Philip G.

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Book Id: WPLBN0000660068
Format Type: PDF eBook
File Size: 2.92 MB.
Reproduction Date: 2005
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Title: A Unified Fundamental Equation for the Thermodynamic Properties of H2 0  
Author: Hill, Philip G.
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Language: English
Subject: Technology., Reference materials, Technology and literature
Collections: Techonology eBook Collection
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Hill, P. G. (n.d.). A Unified Fundamental Equation for the Thermodynamic Properties of H2 0. Retrieved from http://hawaiilibrary.net/


Description
Technical Reference Publication

Excerpt
Introduction: One of the first methods for uniting a scaled equation of state, valid only near the critical point, with a nonsingular equation representing states not in the critical region was devised by Chapela and Rowlinson (1974) for carbon dioxide [and used by Angus, Armstrong, and de Reuck (1976) in preparing their CO, tables]. The method could be represented as a linear combination of the pressure P, produced by the simple scaling equation of Schofield and the pressure PA produced by a nonsingular equation valid for states of CO, not near the critical point, i.e.

Table of Contents
Contents 1 . Introduction ..................... ~ 2. The Revised and Extended Sc~ aling Eq. u. a.t.io.n ...... 3. The Unified Helmholtz Function ................. . ..... 4. Fitting Procedure ................................................. 5 . Comparisons with Experimental Data ................. 5.1. Saturation Properties ....... .......................... 5.2. Densities ...................................................... 5.3. Pressures ..................................................... 5.4. Speed of Sound ............................................ 5.5. Isopiestic Specific Heats .............................. 5.6. Isochoric Specific Heats ............................. 5.7. Throttling and Viral Coefficients ................ 5.8. Virial Coefficients .......................... .. .......... 6 . The Critical Region Transition ............................ 7 . Conclusions ......................................................... 8 . Acknowledgments ................................................ 9 . References ............................................................ List of Tables 1 . Correlation data ................................................... 2 . Evaluation data .................................................... List of Figures 1 . Saturation pressure: 0-100 C .......................... 2 . Saturation pressure: 100-350 C ...................... 3 . Saturation pressure: 350-375 C ...................... 4 . Liquid saturation density: 0-100 C ................. 5 Tiqnid cati~ration density: 100-350 C ............. 6 . Liquid saturation density: 100-350 C ............. 7. Liquid saturation density: 350-375 C ............. 8. Vapor saturation density: 0-100 C .................. 9 . Vapor saturation density: 100-350 C .............. 10 . Vapor saturation density: 350-375 C .............. 1 1 . Liquid saturation enthalpy: 0-100 C .............. 12. Liquid saturation enthalpy: 100-350 'C ........... 13 . Liquid saturation enthalpy: 100-350 C ........... 14 . Liquid saturation enthdpy: 35CL375 'C ........... 15 . Vapor saturation enthalpy: 0-100 C ............... 16 . Vapor saturation enthalpy: 100-350 C ........... 17 . Vapor saturation enthalpy: 350-375 C ........... 18 . Saturation vapor enthalpy-difference-temperature- difference ratio: 0-150 C .................. 19 . Saturation function a 0-100 C ........................ 20 . Saturation function a 100-350 C .................... 21 . Saturation function a 0-100 C ........................ 22 . Saturation function a 0-250 C ........................ 23 . Saturation function a 100-350 C .................... 24 . Liquid density maximum - 5 to + 5 C ........ Liquid density: 0 C .......................................... Liquid density: 20 C ........................................ Liquid density: 50 C ........................................ Liquid density: 100 C ...................................... Liquid density: 150 C ...................................... Liquid density: 200 'C ...................................... Liquid density: 250øC ...................................... Liquid density: 300 C ...................................... Liquid density: 340 C ...................................... Liquid density: 350 C ...................................... 35 . Liquid density: 360 C ...................................... 1246 36. Liquid density: 370 C ...................................... 1246 @I990 by the U.S. Secretary of Commerce on behalf of the United States. 37 . ~ i ~de~nsitiy: d373 .5 oc ................................... 1246 This copyright is assigned to the American Institute of Physics and the . ...................................... American Chemical Society . 38 Liquid density: 374 C 1246 Reprints available from ACS; see Reprints List at back of issue. 39 . Liquid density: 375 C ...................................... 1246 0047.2689/90/051233.42/$07.00 1233 J . Phys . Chern . Ref . Data. Vol . 19. No . 5. 1990

 

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