Dear CHE 212 students,

I hadn't realized that the appendices in Felder and Rousseau don't contain all of the physical property information that is needed for the energy balances (part 3) for the compounds in the project.

If you can't find the necessary information in the back of the book, a good source to try is the NIST chemistry webbook,

http://webbook.nist.gov/chemistry/

Enter the name of the compound, and then select the kinds of thermodynamic data that you want. You should be able to find property values for everything that you need (heat capacities, etc). The data may not be in the form of an equation, but you can figure out an equation to use (by fitting the points) or can make other approximations that seem reasonable.

For the dodecane (i.e. the compound to use for properties of compound G), assume that the heat of vaporization is independent of temperature. This is the same thing as assuming that the liquid heat capacity and vapor heat capacity are the same. (It isn't a great assumption, but it will do for the problem.)

Prof. Greenfield

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