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0.1
Enthalpy of Mixtures
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additio3
0.1
Enthalpy of Mixtures
The enthalpy of a mixture is determined using an equation of state by combining the departure
function for the mixture with the enthalpy of an ideal gas mixture
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where the first term on the right side represents the enthalpy departure given by Eqn. 7.24 or Eqn
7.31. For the PengRobinson equation, the departure formula has been calculated in Example 7.3.
The equation of state parameters depend on composition as provided by Eqn. 10.9. The summation
of the ideal gas enthalpies Eqn. 0.1 is easily calculated after selecting a reference state for each
component. For a fluid that is not an ideal gas at the reference state
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Each component may have a different reference state temperature, pressure and state of aggrega
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 Spring '11
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