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reference state entropy unit

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Old   June 12, 2017, 12:06
Exclamation reference state entropy unit
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power
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Hello,
on Fluent, a friend of mine, setting properties of a gas found that unit for reference state entropy is J/kgmol*K.
That's not clear to me.
J/kgmol*K=J/(g*K) or J/(kmol*K) or J/(kg*K)? Or what?

I found an old post here about that

It says simply that kgmol=kmol and so J/kgmol*K=J/(kmol*K). Is it correct?

Thanks
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Old   June 12, 2017, 19:21
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1 kg mol is indeed 1 kmol (or 1 gmol is 1 mol).

Chemists like to think that the molecular weight must always be expressed in gm/mol which gives rise to the need to defined different moles when a different unit of mass is used.
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Old   June 13, 2017, 07:22
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Ok,
so, to be more clear, also to future learners, the correct interpretation in SI units is

J/kgmol*K= J/(kmol*K)

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