The speeds of 5 molceules of a gasd ( in...

The speeds of 5 molceules of a gasd ( in arbitrary units) are as follows: 2, 3, 4, 5, 6. The root mean square speed for these molecules is ……..

A

2.91

B

3.52

C

`4.00`

D

`4.24`

Verified by Experts

The correct Answer is:

D

`v_(rms)=sqrt((v_1^2 +v_2^2+v_3^3+v_4^4 +v_5^5)/(5))`
`=((2^2+3^2+4^2+5^2+6^2)/(5))=4.24 m // s`

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