Finding molar entropy of benzene

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kshalbi
Posts: 68
Joined: Fri Sep 25, 2015 3:00 am

Finding molar entropy of benzene

Postby kshalbi » Sat Jan 23, 2016 6:03 pm

Is there a way to find the molar entropy of benzene by adding the molar entropies of H2 and C?

Daniel_Sands3L
Posts: 13
Joined: Fri Sep 25, 2015 3:00 am

Re: Finding molar entropy of benzene

Postby Daniel_Sands3L » Sat Jan 23, 2016 10:43 pm

It doesn't seem like it would work this way. For instance, in the following link: www2.stetson.edu/~wgrubbs/datadriven/entropyaluminumoxide/entropyal2o3wtg.html, the molar entropy of Aluminum Oxide is found by integrating with respect to temperature the equation:, where is the constant pressure molar heat capacity of the substance. To find the standard molar entropy, you would have to integrate from 0 to 298K; you couldn't find it by summing two values from two different substances together. It has to be found experimentally for substances.


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