If the r.m.s. velocities of the molecules of two gases 'A' (at 500K) a – McqOptions

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1.	If the r.m.s. velocities of the molecules of two gases 'A' (at 500K) and 'B' (at 300K) are 500m/s and 100m/s respectively, then find molecular mass of the 'B' if molecular mass of 'A' is 2?
A.	15
B.	60
C.	30
D.	12
Answer» D. 12

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