deltaH Units

[Clarisse Wikstrom 1H]

When putting our final answer, how do we know whether the units for deltaH are kJ or kJ/mol? I've seen both so I was wondering if we would get marked off on the test if we wrote the wrong one. Thanks!

[Sophie Krylova 2J]

Usually you would give the answer in the same units as the data given.

[Deap Bhandal L1 S1J]

An example would be the delta H of a reaction is in kJ. However delta H formation could be written in kJ/mole of the product if we divide the original number by the molar coefficient of the product. The kJ/mole is specific for a substance and if you know the amount of moles of the substance you can convert between the two.

[CalebBurns3L]

You have to write out the units for each step of the reaction so you know what units your final answer should be in.

[Jimmy Zhang Dis 1K]

I believe that standard delta H and delta H of a reaction are in KJ while delta H of formation is in KJ/mol

[Chris Lamb 1G]

I was under the impression that when calculating the standard reaction enthalpy, we use kJ/mol. For just regular reaction enthalpy, I would put kJ. But I would like to know if that is true or not.