Properties of Gases and Liquids 5th edition (RPP5
)#
Source#
Methods for calculating pure component properties from:
The Properties of Gases & Liquids, 5th Edition Reid, Prausnitz and Polling, 2001, McGraw-Hill
All methods use SI units.
Ideal Gas Molar Heat Capacity (Constant Pressure)#
Properties of Gases and Liquids uses the following correlation for the ideal gas molar heat capacity:
Parameters
Symbol |
Parameter Name |
Units |
Description |
---|---|---|---|
\(a0\) |
cp_mol_ig_comp_coeff_a0 |
None |
|
\(a1\) |
cp_mol_ig_comp_coeff_a1 |
\(\text{K}^-1\) |
|
\(a2\) |
cp_mol_ig_comp_coeff_a2 |
\(\text{K}^-2\) |
|
\(a3\) |
cp_mol_ig_comp_coeff_a3 |
\(\text{K}^-3\) |
|
\(a4\) |
cp_mol_ig_comp_coeff_a4 |
\(\text{K}^-4\) |
|
\(R\) |
gas_constant |
Same as heat capacity |
Universal gas constant |
Ideal Gas Molar Enthalpy#
The correlation for the ideal gas molar enthalpy is derived from the correlation for the molar heat capacity and is given below:
Parameters
Symbol |
Parameter Name |
Units |
Description |
---|---|---|---|
\(a0\) |
cp_mol_ig_comp_coeff_a0 |
None |
|
\(a1\) |
cp_mol_ig_comp_coeff_a1 |
\(\text{K}^-1\) |
|
\(a2\) |
cp_mol_ig_comp_coeff_a2 |
\(\text{K}^-2\) |
|
\(a3\) |
cp_mol_ig_comp_coeff_a3 |
\(\text{K}^-3\) |
|
\(a4\) |
cp_mol_ig_comp_coeff_a4 |
\(\text{K}^-4\) |
|
\(\Delta h_{\text{form, Vap}}\) |
enth_mol_form_vap_comp_ref |
\(\text{J/mol}\) |
Molar heat of formation at reference state |
Note
This correlation uses the same parameters as the ideal gas heat capacity correlation.
Ideal Gas Molar Entropy#
The correlation for the ideal gas molar entropy is derived from the correlation for the molar heat capacity and is given below:
Parameters
Symbol |
Parameter Name |
Units |
Description |
---|---|---|---|
\(a0\) |
cp_mol_ig_comp_coeff_a0 |
None |
|
\(a1\) |
cp_mol_ig_comp_coeff_a1 |
\(\text{K}^-1\) |
|
\(a2\) |
cp_mol_ig_comp_coeff_a2 |
\(\text{K}^-2\) |
|
\(a3\) |
cp_mol_ig_comp_coeff_a3 |
\(\text{K}^-3\) |
|
\(a4\) |
cp_mol_ig_comp_coeff_a4 |
\(\text{K}^-4\) |
|
\(s_{\text{form, Vap}}\) |
entr_mol_form_vap_comp_ref |
\(\text{J/mol}\cdotp\text{K}\) |
Standard molar entropy of formation at reference state |
Note
This correlation uses the same parameters as the ideal gas heat capacity correlation.
Saturation (Vapor) Pressure#
Properties of Gases and Liquids 5th edition uses the following correlation to calculate the vapor pressure of a component:
Units are bar and Kelvin.
Parameters
Symbol |
Parameter Name |
Units |
Description |
---|---|---|---|
\(A\) |
pressure_sat_comp_coeff_A |
None |
|
\(B\) |
pressure_sat_comp_coeff_B |
\(\text{K}\) |
|
\(C\) |
pressure_sat_comp_coeff_C |
\(\text{K}\) |