Which Has Higher Entropy: HF(g) or Ne(g)?

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SUMMARY

The discussion centers on the entropy comparison between hydrogen fluoride (HF) gas and neon (Ne) gas. HF, being a compound with a hydrogen atom bonded to a fluorine atom, exhibits greater molecular complexity than neon, which is a monoatomic element. This complexity contributes to HF's higher entropy due to its increased degrees of freedom and randomness. Both substances have similar molecular masses, approximately 20 g/mol, but the structural differences significantly influence their entropy levels.

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  • Basic principles of van der Waals forces and their effects on gases.
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Which of the materials have a higher entropy:

HF(g) - Ne(g) ?


Because both of the materials are in State of matter (g) so the van der Waals force are not Affects here.

so how i can know who have higher entropy ?

thanks.
 
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The more complex the molecule, the greater its entropy. My guess would be the HF (g) because it is more complex, and hence has a greater ability to "be random," which is ideally what entropy measures.
 
OK thank you, but can you Please tell me why HF is more complex molecule ?thanks.
 
HF is a compound; there is a hydrogen bonded to a fluorine. As for neon, it is just an element by itself.

Usually, the molecular mass comes into play, but they both are about the same. (Around 20 g/mol)
 
ok thank you.
 

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