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2 days ago · A mathematical study finds that three definitions of what it means for entropy to increase, which have previously been considered equivalent, can produce different results in the quantum realm
5 days ago · The van der Waals equation, named for its originator, the Dutch physicist Johannes Diderik van der Waals, is an equation of state that extends the ideal gas law to include the non-zero size of gas molecules and the interactions between them (both of which depend on the specific substance).
5 days ago · This phenomenon is referred to as the high-entropy effect, which has been confirmed in many high-entropy materials, such as alloy, nitride and carbide [11], [12], [13]. Research on high-entropy oxides (HEOs) have made significant progress in recent years, particularly in the fields of electrochemical energy storage, catalysis, piezoelectric and ferroelectric applications, and corrosion ...
1 day ago · Consequently, many biphasic, liquid-liquid systems fully mix only at high temperatures, the well-known upper critical solution temperature (UCST) behavior, which is used in chemistry reference texts to explain the role of entropy in phase behavior. 16 Paradoxically, the behavior of LCST systems is the opposite: LCST mixtures become less miscible at high temperatures.
1 day ago · The history of thermodynamics is a fundamental strand in the history of physics, the history of chemistry, and the history of science in general. Due to the relevance of thermodynamics in much of science and technology, its history is finely woven with the developments of classical mechanics, quantum mechanics, magnetism, and chemical kinetics, to more distant applied fields such as ...
2 days ago · As the Boltzmann constant is simultaneously a certain unit of entropy, the physical meaning of Eq. ( 23 ) is that in the frame of phenomenological approach can be the Planck’s Ansatz violated. It is evidently at variance with statistical theory, where the statistical temperature Θ, having the physical dimension of energy, is transformed as the energy, while the conversion factor k must ...
4 days ago · An introduction to the concept of entropy, which is a measure of the tendency of energy to disperse. Duration: 5:51. [C0905a2]
