New answers tagged entropy
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What is entropy really?
Entropy is described as the degree of chaos. According to the second law of thermodynamics the entropy of a closed system can only increase and the ability to do work decreases. Accordingly, an ...
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Does GR predict this empirical link between radiated GW energy and final Kerr thermodynamics in BBH mergers?
In the small mass-ratio ($q=m_2/m_1\to0$) limit the value of your "constant" is approximately given by (in units where $G=m_1=c=1$)
$$ \xi(\chi_f)\sim\frac{1}{4}\frac{1-E_{\rm isco}}{E_{\rm ...
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Question about my understanding of Clausius inequality and changes in entropy
A proof that entropy cannot decrease in an isolated system.
We consider a system and take it through a cycle from state A to B to C to A,
where:
A,B,C are each equilibrium states.
A and B have the ...
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Accepted
Callen's thermodynamics - is it possible for the state of maximum entropy to lie on unphysical thermodynamic coordinates?
I'll try to complement the already excellent answer by @naturallyInconsistent with a more comprehensive discussion from the mathematical point of view, and a purely thermodynamic argument, from the ...
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What's the relation of entropy with synchronisation?
We have to understand entropy is the direction every Universal Force pushes the state of a system toward. Why does it do this? Because it increases the number of possibilities that that system can be ...
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Callen's thermodynamics - is it possible for the state of maximum entropy to lie on unphysical thermodynamic coordinates?
The rigorous mathematics of classical thermodynamics only works in the thermodynamic limit, which, amongst other requirements, require that $N\to\infty$
This is also the limit in which all the finite ...
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Callen's thermodynamics - is it possible for the state of maximum entropy to lie on unphysical thermodynamic coordinates?
Every branch and aspect of science starts out by making approximations and simplifications in order to make progress. Elementary particle physics, with things like the fine structure constant and $g-2$...
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Is $\Delta H$ equal to $\Delta Q_{irreversible}$?
The step $\Delta Q_{\mathrm{irrev}} = \Delta H$ is not generally valid for an
arbitrary irreversible process. It holds only when the transformation is
quasistatic and isobaric, so that the system ...
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Reference for statistical mechanics from information theoretic view
John Baez has written a short book (128 pages) called What is Entropy?, which is exactly an introduction to statistical mechanics from the information theoretic point of view.
As you might expect from ...
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Is black hole formation reversible if physics law holds even in time reverse?
Time reversed black hole is white hole, so black hole formation in time symmetric view is white hole finishing expelling of mass.
Big Crunch seems time-reversed Big Bang (e.g. https://www.sciencealert....
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