The ratio of vapour densities of two gases at the same temperature is 25 4 , then the ratio of r.m.s. velocities will be:

Question

The ratio of vapour densities of two gases at the same temperature is 25 4 ​ , then the ratio of r.m.s. velocities will be:

TestHub · Accepted Answer

(Vapor density) = ( 2 Molar mass ​ ) , I.e, v d = 2 M ​ ​ v rms ​ = M 3 RT ​ ​ v 1 ​ v 2 ​ ​ = M 2 ​ M 1 ​ ​ ​ = 4 25 ​ ​ = 2 5 ​ ​

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