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Compound Heat Capacities?


Pedantic

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So, somewhat new to Atmosia, but I have some real-world experience with this kinda thing. I'm curious about how we model the heat capacity of gas mixtures- specifically, are they affected by the molar fraction of gases in the mixture? For example, Phoron has a HC of 200J/mol-k, and Hydrogen has a HC of 100J/mol-K in our sim. If I did a 50-50mix at constant temp and pressure, they'd be at equimolar amounts then. 

 

So, based on that, we'd have HCm = HC(phoron)*(molar fraction phoron) + HC(hydrogen)*(molar fraction hydrogen), or HC(mixture) = 200*.5 + 100*.5 = 150 J/mol-K.

 

I know in real-life you'd need to use volume/mass for this, but I'm like 90% sure our atmo sim uses moles in place of mass, so I'm basing it off that. Anyway, just curious about if I could use this to lower the heat capacity of a phoron-mix to make heating it up to can pressure easier- heat it up to increase pressure, then filter out the now-hot phoron to use up less of it. Not especially practical, but makes sense from a lore perspective. Plus, could be used to super-cool nitrogen mixes by using a gas with a lower heat capacity.

 

Anyway, sorry for the math, just trying to make sure I understand this right.

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