The respective speeds of the five molecules are 1 ,2 ,3 ,4 and 5 kms^-1. Then, the ratio of their rms velocity and the average velocity will be

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Accepted Answer

Correct answer: A. (a) V_1=1 , V_2=2 , V_3=3 , V_4=4 , V_5=5 Root mean square speed is given by V_ rms= V_1^2+V_2^2+V_3^2+V_4^2+V_5^25 … … . (i ) = 1^2+2^2+3^3+4^4+5^55 V_ avg= V_1+V_2+V_3+V_4+V_55 … . ( ii ) = 1+2+3+4+55 V_ rmsV_ avg= 1^1+2^2+3^2+4^2+5^21+2+3+4+5 5 5= 113 or 11 :3

$The respective speeds of the five molecules are 1, 2, 3, 4 and 5 kms^{- 1} . Then, the ratio of their rms velocity and the average velocity will be$

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