理想气体自由膨胀和混合中热辐射的相互作用及经典热力学中的吉布斯佯谬
Interaction with thermal radiation in the free expansion and mixing of ideal gases and Gibbs' paradox in classical thermodynamics
摘要：
理想气体的标准理论忽略了气体粒子与热辐射（光子气体）的相互作用，热辐射填充了它们之间的真空空间。这是该理论的一个非物理特征，因为宇宙中的每一种物质，因此也包括气体的粒子，都吸收和辐射热能。与包含在物体体积内的热辐射的相互作用在气体中可能是重要的，因为气体与固体和液体不同，能够经历明显的体积变化。考虑到这种相互作用使得理想气体的行为更加真实，并消除了吉布斯悖论。
英文摘要：
The standard theory of ideal gases ignores the interaction of the gas particles with the thermal radiation (photon gas) that fills the otherwise vacuum space between them. This is an unphysical feature of the theory since every material in this universe, and hence also the particles of a gas, absorbs and radiates thermal energy. The interaction with the thermal radiation that is contained within the volume of the body may be important in gases since the latter, unlike solids and liquids, are capable of undergoing conspicuous volume changes. Taking this interaction into account makes the behaviour of the ideal gases more realistic and removes Gibbs' paradox.
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