Hello everyone,

I am using COSMOTherm (version25) to calculate the properties of a mixture containing water and octane. I’ve followed the steps below:

1. Added water and octane from the built-in database.

2. Went to Properties → Mixture → Add All Pure → Run.

3. Obtained the calculation results (see attached screenshot/image, if possible).

In the output, I see two entries labeled “COMPOUND PROPERTIES NO1. 298.15” and “COMPOUND PROPERTIES NO2. 298.15” at the bottom.

My question is:
What is the actual physical meaning of these two “COMPOUND PROPERTIES” entries?

Thank you in advance for your help!

W.W. Ming