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[FAQ]

When you are using a reaction model, it is necessary to input thermodynamic properties for each species such as: -Specific heat (Cp) -Molecular weight (Mw) -Standard State Enthalpy (h0i) -Standard State Entropy (s0i) -Reference Temperature (Tref) The most common properties that you must define even if you are only solving species transport without a chemical reaction are the Specific Heat and Molecular Weight: The Specific Heat will be used when solving the energy equation and the Molecular Weight is used to calculate mixture properties (Mixture Enthalpy, Mixture Entropy, Density, etc). The Standard State Enthalpy is used to calculate the Mixture Enthalpy, which will be used to calculate the Enthalpy of Reaction. If you are using the finite-rate model with reversible reactions, you also must define the standard state entropy, for each species. It will be used to calculate the equilibrium constant of the reaction rate. The Reference Temperature refers to the temperature in which the Standard State Enthalpy and Standard State Entropy are defined.