if the density of airr at N.T.P. is 1.25`kg//m^(3)`, then the r.m.s. velocity of air molecules at N.T.P. will be
A. 0.50 km/s
B. 0.48 km/s
C. 0.96 km/s
D. 0.64 km/s

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1 Answers

Correct Answer - B
`C=sqrt((3P)/(rho))=sqrt(3xx1.013xx10^(5))/(1.25))=0.4847km//s`

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