原子或分子严格按照一定规律重复排列,且长程有序的晶体,它的结构完整,具有一个的周期性和对称性)。在绝对零度(即T=0K)时,一切完美晶体的熵值等于零。所谓“完美晶体”是指没有任何缺陷的规则晶体。实际中完美晶体是不存在的。
... 外扩散控制 external diffusion control 完美晶体 perfect crystalline 完全气体 perfect gas ...
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... 理想非完美晶体 ideally imperfect crystal ; idealimperfectcrystal 完美晶体 完整晶体 perfectcrystal 完美晶体,完整晶体 perfect crystal ...
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第3章 晶体的缺陷化学 Chemistry on the Crystals with defects 完美晶体(Perfact Crystals) 晶体中原子的有序排列在三维空间无限延伸并且具有严格的周期性循环。
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完美晶体:它们存在吗?
如果你们能回忆起来的的话,这就意味着,绝对零度下的完美晶体,一点无序状态也没有。
And what that corresponds to, if you recall, is the idea that in a perfect crystal at zero degrees Kelvin then you have no disorder at all.
这和我们看到的其他东西自洽吗?,想想零摄氏度下的,完美晶体的熵为零,这是完全有序的。
And that's consistent with other things that we've seen, Remember the whole thing about the perfect crystal at zero degrees Kelvin has zero entropy it's completely ordered.
And that's consistent with other things that we've seen, Remember the whole thing about the perfect crystal at zero degrees Kelvin has zero entropy It's completely ordered.
这和我们看到的其他东西自洽吗?,想想零摄氏度下的,完美晶体的熵为零,这是完全有序的。
We looked at pressure change before, actually, in discussing the third law, the fact that the entropy goes to zero as the absolute temperature goes to zero for a pure,perfect crystal.
在讨论热力学第三定律的时候,我们讨论过压强变化,即对于纯净的完美晶体,随着温度下降到绝对零度熵也变成零。
And what that corresponds to, if you recall, is the idea that in a perfect crystal at zero degrees Kelvin then you have no disorder at all.
如果你们能回忆起来的的话,这就意味着,绝对零度下的完美晶体,一点无序状态也没有。
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