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if the density of airr at N.T.P. is 1.25...

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

Text Solution

Verified by Experts

The correct Answer is:
B
`C=sqrt((3P)/(rho))=sqrt(3xx1.013xx10^(5))/(1.25))=0.4847km//s`
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