Units for entropy, enthalpy, and GFE

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Hannah Lee 2F
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Joined: Thu Jul 11, 2019 12:15 am

Units for entropy, enthalpy, and GFE

Postby Hannah Lee 2F » Mon Feb 10, 2020 10:52 pm

Are the units for standard free energy kJ or kJ/mol? I thought it was given in kJ unless the question specifically asked for the molar Gibbs free energy but the solutions manual gives them all in kJ/mol. I also assumed the "mol" would cancel out of the units. Or is the solutions manual referring to kJ/mol rxn?

Would it matter which unit we used in the test? (eg kJ/mol or kJ or kJ/mol rxn)

Alexis Webb 2B
Posts: 124
Joined: Thu Jul 11, 2019 12:15 am

Re: Units for entropy, enthalpy, and GFE

Postby Alexis Webb 2B » Mon Feb 10, 2020 11:31 pm

Entropy should be J/K, enthalpy is kJ/mol, and I think GFE is kJ/mol but I also did notice that the solutions guide switched around, so I would assume that maybe you can leave it as kJ, but I don't think its wrong to have kJ/mol because the moles don't really cancel out I think it just means thats the amount for one mole of that whole reaction.


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