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 ……..

Options

A. 2.91
B. 3.52
C. `4.00`
D. `4.24`

Answer

D

Explanation

`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`