作者BNQ5566 (56 in the house~)
站内Physics
标题Re: [问题] 统计热力学两题
时间Tue Dec 29 16:56:26 2009
※ 引述《libra1005 (PTT乡民)》之铭言：
: 最近在看统计热力学，作者是JOHN F. LEE FRANCIS W. SEARS
: 看到第五章量子力学部分，课文看完，但是作後面的习题有些还是不太会作，
: 因此想请问板上高手帮忙解惑一下，我的问题点是不太了题目最後要求的是甚麽？
: 感激不尽。
: 问题一.
: It is observed that light emitted from a vibrating hydrogen molecule has
: a wavelength of 2.270*10^-6m .Assuming that this radiation comes from
: transitions between adjacent excited states of a one-dimensional harmonic
: oscillator (with △E = hc/λ,where λ is the wavelength of the observed
: radiation),what is the value of the equivalent spring constant for a hydrogen
: molecule?
△E = hc/λ=hν=(h/2π)*(k/μ)^1/2
k应该为所求
: 问题二.
: It is observed that light emitted from a rotating oxygen molecule must come
: from adjacent rotational states,i.e.△j=1. Determine the frequencies of the
: four lowest transitions if I=1.94*10^39gm cm^2.
E(J) = 2*(h^2)*J(J+1) = BJ(J+1) 单位是焦耳
---------------
8I*(π^2)
所求应为 J=1 --> J=0 2B
J=2 --> J=1 4B
J=3 --> J=2 6B
J=4 --> J=3 8B
不知道对不对
有错请大家指正 @@
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