QJEEM25Ph4813: JEE Main 2025 Physics - Class 11 JEEM25Ph4813 Solution: The ratio of vapour densities of two gases at the same…

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

Accepted Answer

$\begin{aligned} \frac{ρ_{1}}{ρ_{2}} = \frac{4}{25} \\ Ratio of rms velocities = \sqrt{\frac{ρ_{2}}{ρ_{1}}} = \frac{5}{2} \end{aligned}$

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