作者FLYINGNIGHT (阿森)
看板Chemistry
標題[學科] 量化
時間Wed Jan 13 16:15:10 2010
遇到一個題目 下列何者錯誤?
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
我的疑問是 particle in a box，以E=n^2*h^2/8mL^2 來看，A跟B可以知道A是錯的
但是這不是純粹指能量嗎?
能量間隔不是固定的嗎?
D.E看不懂什麼意思~
煩請各位解說一下~~ 感激不盡
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1F：推 cooljeff19:你帶入n=2跟n=1相減不就是能階差(間隔)了嗎= = 01/13 17:29
2F：→ cooljeff19:如果能階間隔固定 那你在巨觀世界中也可以看到 01/13 17:30
3F：→ cooljeff19:能量量子化的分裂了 所以質量越大能階差越小 變成連續 01/13 17:31
4F：→ FLYINGNIGHT:我搞錯了 我以為只跟n有關係 想說其他的話 m都代一樣 01/13 18:51
5F：→ FLYINGNIGHT:不管在第幾階都相同的m 以為不會改變 現在懂了~感謝你 01/13 18:52