Physics paper: Entropy:A concept that is not a physical quantity Published in (SCI-E Journal) PHYSICS ESSAYS (Volume 25, Issue 2 (June 2012)) P172~175.
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In the paper
III. ∮dQ/T=0 is a wrong equation based on a wrong calculus deducing
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" in thermodynamics, the P-V diagram should be P-V-T diagram, according which only ∫T ∫V ∫P 1/TdQ = ∫T ∫V ∫P dF(T,V,P) is clearly meaningful. Then, what does ∫T1/TdQ = ∫T dF(T, V, P) mean? Obviously, it is only meaningful to the calculus of three variables rather than one variable. The P-V-T diagram also shows that it is obviously untenable split or replace any reversible cycles using a series of element reversible Carnot cycles. To any reversible processes, dQ/T (i.e. df(T, V, P)/T) is meaningless in itself ."
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Download this paper here:
http://blog.sciencenet.cn/home.php?mod=space&uid=543672&do=blog&id=592073
View attachment 5774
In the paper
III. ∮dQ/T=0 is a wrong equation based on a wrong calculus deducing
..................
" in thermodynamics, the P-V diagram should be P-V-T diagram, according which only ∫T ∫V ∫P 1/TdQ = ∫T ∫V ∫P dF(T,V,P) is clearly meaningful. Then, what does ∫T1/TdQ = ∫T dF(T, V, P) mean? Obviously, it is only meaningful to the calculus of three variables rather than one variable. The P-V-T diagram also shows that it is obviously untenable split or replace any reversible cycles using a series of element reversible Carnot cycles. To any reversible processes, dQ/T (i.e. df(T, V, P)/T) is meaningless in itself ."
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