Molecules and Solids (id: dd051919d)

本题目来源于试卷: Molecules and Solids，类别为 IB物理学

[填空题]
The average translatiobo-0bm 78or*wyltz :g/;qowah)u .bgnal d9 rx;de/5hn gy(gce8kinetic energy of an atom or molecule is about $ KE = \frac{3}{2}kT $ (Eq. 13-8), where $ k = 1.38 \times 10^{-23}\ \text{J/K} $ is Boltzmann's constant. At what temperature $ T $ will $ KE $ be on the order of the bond energy (and hence the bond likely to be broken by thermal motion) for
(a) a covalent bond of binding energy 4.5 eV (say $ \text{H}_2 $), $T =$    $ \times 10^4\ \text{K}$
(b) a "weak" hydrogen bond of binding energy 0.15 eV? $T = $    $ \times 10^3\ \text{K}$

参考答案:
空格1: 3.5±2%  空格2: 1.2±2% 


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