gc textbook chapter 13 temperature and kinetic theory (id: d5f851701)

本题目来源于试卷: gc textbook chapter 13 temperature and kinetic theory，类别为 通用国际物理

[填空题]
The escape speed from the Eg cjl8.z8v*6o6 l*llp3mg awa arto -bv uayt klz7fs+-o24pi 0i:h is $ 1.12\times10^{4 } m/s$ so a gas molecule travelling away from Earth near the outer boundary of the Earth’s atmosphere would, at this speed, be able to escape from the Earth’s gravitational field. At what temperature is the average speed of
(a) oxygen molecules,    $ \times10^{5 }$K
(b) helium atoms equal to $ 1.12\times10^{4 } m/s$    $ \times10^{4}$K
(c) Can you see why our atmosphere contains oxygen but not helium?

参考答案:
空格1: 1.6±2%  空格2: 2±2% 


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