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Postby Adrienne_4F » Tue Feb 12, 2019 4:35 pm

How do we know that the delta H given is KJ/ mol? Is it always assumed that it's KJ/mol?

Fayez Kanj
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Re: 8.45

Postby Fayez Kanj » Tue Feb 12, 2019 5:04 pm


Delta H is usually assumed to be KJ/mol. However, the questions in the textbook, and most likely the ones on the midterm and tests will have this specified. Always make sure that your units are matching each other in order to add/subtract two values.

Hope this helps :)

Kelsey Warren 1I
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Re: 8.45

Postby Kelsey Warren 1I » Tue Feb 12, 2019 5:08 pm

Yep, delta H is assumed to be in kJ/mol if it's not specified, and also it's assumed that if delta H is given, then the reaction is at a constant pressure.

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