<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Mar 30, 2022 at 4:13 PM glen <<a href="mailto:gepropella@gmail.com">gepropella@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On 3/30/22 11:24, Roger Critchlow wrote:<br>
> Thermodynamic state functions as derivatives with respect to entropy are all over JW Gibb's On the Equilibrium of Heterogeneous Substances. It is the point. PW Bridgman's Dimensional Analysis essentially summarizes all of physics up to 1922 as a problem of combining and factoring units of measurement, one of my favorite library discoveries as an undergraduate. Both available in the internet archive.<br>
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Thanks to Roger for the Bridgman cite. I got a good PDF of that one. The PDF for Gibb will be difficult for me to read. <<a href="https://archive.org/download/Onequilibriumhe00Gibb/Onequilibriumhe00Gibb.pdf" rel="noreferrer" target="_blank">https://archive.org/download/Onequilibriumhe00Gibb/Onequilibriumhe00Gibb.pdf</a>> So I'll look for a Dummies derivation.<br></blockquote><div><br></div><div>All editions of these Gibbs papers that I've ever seen are the same photo reproduction of the original articles. I suspect that no one has ever dared to try and typeset it again. I've never met anyone, including myself, who's claimed to have studied the whole thing.</div><div><br></div><div>There's a synopsis of the sections at the end of the second part of the paper which came in the same pdf as the first part that I downloaded. I can't say that I see where the derivatives with respect to entropy get treated, it certainly isn't obviously all over the place.</div><div><br></div><div>-- rec --</div><div><br></div></div></div>