Units for enthalpy

[Clarissa Cabil 1I]

I am a bit confused on which units I should use for enthalpy.

The book mentions how standard enthalpies of formation are in kJ.mol^-1 and standard enthalpies of reaction are in kJ, but some of the answers for the homework switch the two.

Can anyone clarify what units we should use for enthalpy, and when we should use those units?

[arif_latif_2G]

According to my TA, Jack, both KJ or J work.

[Jaqueline Monreal 2L]

you can use either one

[404982241]

Joule is the SI unit but sometimes it makes more sense to use Kilo Joules for convince reasons.

[Elizabeth Kim 4E]

I think the SI unit is kJ and is used as the final answer on most of the answer keys, so it would be safer to put the final answer in kJ

[Emma Scholes 1L]

You can use either J or kJ. Both will be accepted on the test, but when the amount of J is above 1000, it is usually written in kJ.

[Nandhini_2K]

Either J or KJ. The final answer in J can be turned to KJ by simply dividing it by 1000.