Some questions about physical properties
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1. For general binary interaction parameters, we can use the experimental data of two substances to conduct regression analysis. However, in my case I have 8 different substances; can I then use the experimental data of these 8 substances to determine the binary interaction parameters? 2. The manual states that the activity coefficient method requires binary interaction parameters; then does the equation of state necessarily require binary interaction parameters as well?
1 is possible; the data obtained from experiments can basically only be applied to this system, and the estimation accuracy will be very poor if it is extended to other cases. A 2-state equation does not necessarily have to be binary-parametered; it is not required.