CBSE Class 11-science Answered
4th?
![question image](https://images.topperlearning.com/topper/new-ate/33286169154366322NewDoc201808021.jpg)
Asked by smanishkumar2002 | 02 Aug, 2018, 21:22: PM
(a)
![straight R space equals space 8.314 space cross times 10 to the power of 7 ergs divided by straight K divided by mole
straight T space equals space 273 space plus space 25 space equals space 298 space straight K
straight M space of space electron space equals space 1 over 1837 space straight g
As comma space straight u space equals square root of fraction numerator 3 RT over denominator straight M end fraction space end root space equals space space square root of fraction numerator 3 cross times 8.314 cross times 10 to the power of 7 cross times 298 over denominator begin display style bevelled 1 over 1837 end style end fraction end root space equals space 1.16 space cross times 10 to the power of 7 space cm divided by sec
rms space velocity space of space UF subscript 6 space equals space space space square root of fraction numerator 3 cross times 8.314 cross times 10 to the power of 7 cross times 298 over denominator begin display style 352 end style end fraction end root space equals space 14.53 space cross times 10 cubed space cm divided by sec](https://images.topperlearning.com/topper/tinymce/cache/685fef5a279650ecb15291db84956402.png)
(b)
![For space straight H subscript 2 comma space Average space velocity space equals space square root of fraction numerator 8 RT over denominator straight pi space straight M end fraction end root space equals space square root of fraction numerator 8 space straight R space cross times 300 over denominator straight pi cross times 2 end fraction end root space
For space CH subscript 4 comma space Average space velocity space equals space space square root of fraction numerator 8 RT over denominator straight pi space straight M end fraction end root space equals space square root of fraction numerator 8 space straight R space cross times 900 over denominator straight pi cross times 16 end fraction end root
therefore space fraction numerator Average space velocity space straight H subscript 2 over denominator Average space velocity space CH subscript 4 end fraction space equals space square root of fraction numerator 300 cross times 16 over denominator 900 cross times 2 end fraction end root space equals space fraction numerator 69.28 over denominator 42.42 end fraction space equals space fraction numerator 1.633 over denominator 1 end fraction](https://images.topperlearning.com/topper/tinymce/cache/827e6ce2baf531a3ca058548c8e4c9f0.png)
Answered by Ramandeep | 06 Aug, 2018, 15:33: PM
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