A) 1.086 : 1
B) 1 : 1.086
C) 2 : 1.086
D) 1.086 : 2
Correct Answer: A
Solution :
\[{{V}_{rms}}=\sqrt{\frac{3RT}{M}},{{V}_{av}}=\sqrt{\frac{8RT}{\pi M}}\]; \[\frac{{{V}_{rms}}}{{{V}_{av}}}=\sqrt{\frac{3\pi }{8}}\] \[=\sqrt{\frac{66}{56}}\Rightarrow \frac{1.086}{1}\]
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