Preferences between Methods

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Emily Lo 1J
Posts: 50
Joined: Thu Sep 19, 2019 12:16 am

Preferences between Methods

Postby Emily Lo 1J » Sun Jan 26, 2020 3:55 pm

Did Professor Lavelle say if there was a method preferred over another? And how would we know which one to use?

John Liang 2I
Posts: 102
Joined: Fri Aug 30, 2019 12:18 am

Re: Preferences between Methods

Postby John Liang 2I » Sun Jan 26, 2020 3:59 pm

Emily Lo 1J wrote:Did Professor Lavelle say if there was a method preferred over another? And how would we know which one to use?


He did mention that using bond energies is not as accurate as using Hess' method because bond enthalpy values are averaged across all different molecules (which gives a less precise value).

Helen Struble 2F
Posts: 97
Joined: Sat Aug 24, 2019 12:17 am

Re: Preferences between Methods

Postby Helen Struble 2F » Sun Jan 26, 2020 4:01 pm

The method you have to use will usually be obvious based on the information given to you. For example, if bond energies are given to you, you'll have to compute enthalpy using that method.

Juliet Stephenson 4E
Posts: 100
Joined: Wed Sep 18, 2019 12:21 am

Re: Preferences between Methods

Postby Juliet Stephenson 4E » Sun Jan 26, 2020 4:05 pm

The method you should use depends on the information provided in the problem.


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