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CHE 3010 - Thermodynamics Tennessee Tech University
Venkat Padmanabhan, PhD Department of Chemical Engineering
Tennessee Tech University
CHE 3010 - Thermodynamics of Chemical Processes
Lecture 32 - Thermodynamic Diagrams & Tables 11/17/2017
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Other Methods to Obtain the Residual Properties
from Equations of State
HR
RT= P
R ( BT
− dBdT ) SR
R= − P
RdBdT
Virial equation of state
From generalized correlations
Lee/Kesler correlation
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Two-Phase Systems
dU = TdS− PdVdH = TdS+ VdP
dA = − SdT − PdVdG = − SdT + VdP
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Two-Phase Systems
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Temperature Dependence of the Vapor Pressure of Liquids
The Antoine Equation provides a correlation between vapor pressure and temperature
ln Psat = A − BT + C
Values of A, B, and C are available for various species in Table B.2
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Thermodynamic Diagrams
P-H diagram
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Thermodynamic Diagrams
T-S diagram Mollier diagram