作者FLYINGNIGHT (阿森)
看板Chemistry
标题[学科] 量化
时间Wed Jan 13 16:15:10 2010
遇到一个题目 下列何者错误?
A.For a one-dimensional particle in a box,as the mass of the particle becomes
larger the separation between neighboring energy levels increases
B.For a one-dimensional particle in a box,the separation between neighboring
energy levels decreases as the length of the containter increases
D.Argon atoms in acylinder can be treated as thought their translationl energy
were not quantized
E.A billiard ball on a table has completely negligible zero-point energy
答案:A
我的疑问是 particle in a box，以E=n^2*h^2/8mL^2 来看，A跟B可以知道A是错的
但是这不是纯粹指能量吗?
能量间隔不是固定的吗?
D.E看不懂什麽意思~
烦请各位解说一下~~ 感激不尽
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1F：推 cooljeff19:你带入n=2跟n=1相减不就是能阶差(间隔)了吗= = 01/13 17:29
2F：→ cooljeff19:如果能阶间隔固定 那你在巨观世界中也可以看到 01/13 17:30
3F：→ cooljeff19:能量量子化的分裂了 所以质量越大能阶差越小 变成连续 01/13 17:31
4F：→ FLYINGNIGHT:我搞错了 我以为只跟n有关系 想说其他的话 m都代一样 01/13 18:51
5F：→ FLYINGNIGHT:不管在第几阶都相同的m 以为不会改变 现在懂了~感谢你 01/13 18:52