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Molar entropy

Posted: Fri Feb 08, 2019 11:26 pm
by Ashley Bouma 1F
How do you decide which diatomic molecule has a higher molar entropy at the same temp? For example HBr or HF?

Re: Molar entropy

Posted: Fri Feb 08, 2019 11:48 pm
by Kevin ODonnell 2B
From the trend I believe there is a decrease in the entropy as the forces between the atoms, molecules, or ions increases. A good example is the three solid compounds NaF with the molar entropy 51.5, MgO at 26.8, and AlN at 20.2

Re: Molar entropy

Posted: Sat Feb 09, 2019 12:38 am
by Douglas Nguyen 2J
In that instance, you can determine which has a higher molar entropy with which one has greater mass, and since it has greater mass, it also has more elementary particles!