热接触时的可逆温度交换
Reversible temperature exchange upon thermal contact
摘要：
根据一个众所周知的热力学原理，当两个物体的温度无限接近时，它们之间的热传递是可逆的。正如我们所证明的，存在一种鲜为人知的替代方案：两个温度相差任意量的物体可以完全以可逆的方式交换温度，如果将其分成无限小的部分，并依次进行热接触。
英文摘要：
According to a well-known principle of thermodynamics, the transfer of heat between two bodies is reversible when their temperatures are infinitesimally close. As we demonstrate, a little-known alternative exists: two bodies with temperatures different by an arbitrary amount can completely exchange their temperatures in a reversible way if split into infinitesimal parts that are brought into thermal contact sequentially.
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