Bond Enthalpy versus standard Enthalpies of formation

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Teresa Chan 2G
Posts: 9
Joined: Wed Sep 21, 2016 2:57 pm

Bond Enthalpy versus standard Enthalpies of formation

Postby Teresa Chan 2G » Sun Jan 15, 2017 10:02 pm

How do we distinguish between when to use bond Enthalpy or standard Enthalpy?

Angela_Pu_3C
Posts: 22
Joined: Fri Jul 15, 2016 3:00 am

Re: Bond Enthalpy versus standard Enthalpies of formation

Postby Angela_Pu_3C » Sun Jan 15, 2017 10:12 pm

Based on the textbook problems Lavelle assigned, the problem may tell you which method it wants you to use. If not, I'm p sure that you'll be provided w certain info (aka standard enthalpies of formation or bond enthalpies) which will push you towards using a certain method, and you'll solve the problem accordingly.

Cris-1C
Posts: 7
Joined: Mon Jan 26, 2015 2:17 pm

Re: Bond Enthalpy versus standard Enthalpies of formation

Postby Cris-1C » Sun Jan 15, 2017 10:45 pm

I believe the textbook problems do specifically state which method to use, in which the manner that each problem is presented in also seems to lend itself to using a certain method. However, if I do remember correctly, Lavelle did mention that sometimes a problem has some sort of freedom in terms of choosing how to approach it. If anything, I am sure future quizzes and exams will either specifically state which method to use or the fact that we are free to choose any.


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