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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >On the reality of the residual entropy of glasses and disordered crystals: The entropy of mixing
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On the reality of the residual entropy of glasses and disordered crystals: The entropy of mixing

机译：关于玻璃和无序晶体的剩余熵的现实：混合的熵

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摘要

We have previously shown that the assumption that the configurational entropy of a supercooled liquid vanishes at T_g leads to a non-trivial violation of the second law. Here we consider the example of the entropy of mixing. We use as a model system two similar chemical substances which form an ideal solution in a mixed phase. We apply the reasoning of our earlier paper to show that this vanishing would lead to a dilemma; either it violates the second law of thermodynamics, or else it cannot be demonstrated by any conceivable experiment. We show further that the vanishing of the entropy of mixing on kinetic arrest leads to the counter-intuitive result that the chemical potential of each component in an infinitely dilute kinetically arrested (or glassy) solution can equal or the chemical potential of the pure component. The most parsimonious conclusion from these results is that residual entropies are real.
机译：先前我们已经表明，过冷液体的结构熵在T_g消失的假设导致对第二定律的非平凡违反。这里我们以混合熵为例。我们使用两种相似的化学物质作为模型系统，它们在混合相中形成理想的溶液。我们运用我们先前论文的推理来证明这种消失将导致困境。它违反了热力学第二定律，或者无法通过任何可以想象的实验来证明。我们进一步表明，动力学停滞时混合熵的消失导致反直觉的结果，即无限稀释的动力学停滞（或玻璃态）溶液中每个组分的化学势可以等于纯组分的化学势。从这些结果中得出的最简约的结论是残留熵是真实的。

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