The performance and thermal properties of convective–radiative rectangular and moving exponential porous fins with variable thermal conductivity together with internal heat generation are investigated. The second law of thermodynamics is used to investigate entropy generation in the proposed fins. The model ...
i.e., the first law of black hole thermodynamics proposed by Wald is satisfied. The conditions on the vector charges P and Q are interpreted in the following way: the relation between P, Q and rh tells us that not all three charges are independent, something that had been pointed out ...
The second law of thermodynamics states that: 🙋 The disorder of a system is always increasing. Entropy is the measure of that disorder. But why measure disorder, and is it even possible? Physically, we can't measure entropy, but we can calculate it. It's one of the main determinants ...
V.V. Ryazanov, Non-equilibrium thermodynamics with thermodynamic parameter of lifetime of system. I. arXiv:1910.05128 V.V. Ryazanov, Non-equilibrium thermodynamics with first-passage time of states as independent thermodynamic parameter. arXiv:2003.08307 V.V. Ryazanov, Lifetime distributions in the ...
Since it is known that the choice of a graph matrix does affect the evolution of quantum walk11,12, we claim that there is a need to design the entropy formula which accepts each of the above-mentioned matrices. Entropy in the work4 is defined as the von Neumann entropy of Gibbs state...
Entropy of Vaporization In subject area: Chemistry The entropy of vaporization is proportional to the ratio of the degree of randomness in the vapor and liquid phases. From: Nonequilibrium Thermodynamics (Fourth Edition), 2019 About this pageAdd to MendeleySet alert Discover other topics ...
of entropy has been challenged both from the experimental and theoretical point of view [11,12]. Entropy is a mathe-matical formula. Standard calculations have shown that the entropy of our universe is dominated by black holes, whose entropy is of the order of their area in planck units [...
The formulae of non-dimensional radiation entropy generation and entropy generation number for . 用数值模拟方法对一维半透明介质内辐射与导热复合换热过程进行了热力学分析,给出了参与性介质中辐射与导热复合换热过程的无因次熵产公式和熵产数公式,分析了辐射—导热参数、光学厚度、散射反照率、壁面黑度对熵产...
Although often portrayed as a touchstone for quantum gravity, it should be kept in mind that the entropy formula and other thermodynamic relations satisfied by black holes are se...Das S. Black hole thermodynamics: Entropy, information and beyond. Pramana, 63 (2004), 797-816. hep-th/0403202...
Far-from-equilibrium thermodynamics underpins the emergence of life, but how has been a long-outstanding puzzle. Best candidate theories based on the maximum entropy production principle could not be unequivocally proven, in part due to complicated physi