Maxwells relations for an open system

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Maxwell's relations for open systems may extend beyond those derived for closed systems, particularly when considering chemical potential. The author is exploring the derivation of these relations and has shared their findings for feedback. They seek clarification on whether their approach is valid or if there are flaws in their reasoning. The discussion indicates that there is potential for further development in understanding these relations in open systems. Continued exploration and input from others could enhance the author's hypothesis and comprehension of the topic.
gfd43tg
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HelloI have learned about maxwells relations and can derive them. I noticed that we had made an assumption of a closed system.

We just learns about chemical potential and the fundamental relations for an open system. I had a thought experiment that there may exist maxwells relations for an open system that is more general than the ones I previously learned. I tried deriving them in the same way as the closed system equations and attached what I came up with. I was wondering if what I'm trying to do is nonsensical, and if so why is it, or if my math is wrong but I'm on the right track towards something real if I could get some input.

Thanks

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I think I am onto something with this hypothesis, I have gotten further in the chapter and they seem to use maxwell's relations, but I am not quite following their work.
 

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