但是，如果我们知道，物质在固相，液相和气相中所有可能态的能量，统计力学告诉我们，我们可以计算这些相的平衡问题。

But again, if you know all the energies of the possible states, in the solid, in the liquid and the gas, statistical mechanics shows us that we can calculate the equilibrium between those.

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为了降低能量，这些表面活性剂通过吸附在气液分界面上从而把它们的尾巴保护起来不碰到水，如果在溶液里的话，则凝聚成胶束。

To minimize energy, the surfactants shield their tails from water by adsorbing at the air-water interfaces or, when in solution, aggregating into micelles.

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如果气体提取速度太快，使得蒸发液体所需要的能量不能从周围空气中得到补充，液相会开始冷却。

If the withdrawal rate of the gas is such that the energy required to vaporize the liquid cannot be recovered from the surrounding air, the liquid phase will begin to cool.

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