Kinetic Theory Of Gases Question 109
Question: On any planet, the presence of atmosphere implies ( $ C _{rms} $ = root mean square velocity of molecules and $ V _{e} $ = escape velocity)
Options:
A) $ C _{rms}«V _{e} $
B) $ C _{rms}>V _{e} $
C) $ C _{rms}=V _{e} $
D) $ C _{rms}=0 $
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Answer:
Correct Answer: A
Solution:
[a] Since $ C _{rms}«V _{e}, $ hence molecules do not escape out.