What does enthalpy departure mean?
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What does enthalpy departure mean?
Deviation enthalpy! For example, when the PR equation is chosen, the enthalpy value of a certain state is obtained by adding the enthalpy of the ideal gas at that state to the deviation enthalpy
The correct answer is above; its definition is: M – M0ig = M(T, p) – Mig(T, p0), that is, the enthalpy deviation of the state under study relative to a reference state. Typically, the reference state is an ideal gas state at the same temperature as the state under study and at a pressure of p0
Reply 2# Can Castro be understood as the enthalpy difference, that is, the difference between the enthalpy of the current state and the enthalpy of the ground state?
No, Aspen has a database for Dipper; in Dipper, the ground state of an ideal gas is at 25 degrees, and this value in Aspen is denoted as HForm@25. Therefore, to calculate the enthalpy value at a certain state point (T, P), one first calculates H(T) for the ideal gas plus HForm@25, and then adds the enthalpy deviation (P, T), which is determined using the equation of state!
Reply 2# Castro: The accurate Chinese translation for \"enthalpy deviation\" is: enthalpy deviation