Units of Standard Enthalpies of Formation

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Abigail Urbina 1K
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Joined: Thu Jul 27, 2017 3:01 am

Units of Standard Enthalpies of Formation

Postby Abigail Urbina 1K » Sun Jan 21, 2018 4:54 pm

I know that the units of standard enthalpies of formation is always kJ/mol. However, for problem 8.63 in the textbook solutions manual, why is the solution only given in kJ and not kJ/mol? Are there certain instances where the answer should only be written with units of kJ? Should we just stick to always writing units of kJ/mol on exams?

Emily Oren 3C
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Joined: Fri Sep 29, 2017 7:07 am

Re: Units of Standard Enthalpies of Formation

Postby Emily Oren 3C » Sun Jan 21, 2018 4:58 pm

My TA writes it as kJ/mole of reaction, but said it doesn't really matter if you use kJ or kJ/mol. I think just make sure to keep track of your units in your work and use that.

Vincent Kim 2I
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Re: Units of Standard Enthalpies of Formation

Postby Vincent Kim 2I » Mon Jan 22, 2018 5:14 pm

Essentially, it doesn't really matter whether it's kj or kj/mol, just use whatever you end up with as you work through the problem.


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