Molar entropy


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Ashley Bouma 1F
Posts: 30
Joined: Fri Sep 28, 2018 12:21 am

Molar entropy

Postby Ashley Bouma 1F » Fri Feb 08, 2019 11:26 pm

How do you decide which diatomic molecule has a higher molar entropy at the same temp? For example HBr or HF?

Kevin ODonnell 2B
Posts: 62
Joined: Fri Sep 28, 2018 12:24 am

Re: Molar entropy

Postby Kevin ODonnell 2B » Fri Feb 08, 2019 11:48 pm

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

Douglas Nguyen 2J
Posts: 71
Joined: Fri Sep 28, 2018 12:15 am

Re: Molar entropy

Postby Douglas Nguyen 2J » Sat Feb 09, 2019 12:38 am

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!


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