Root mean square speed of gas molecules

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  1. 1 2026 Kinetic Theory
    A flask contains argon and chlorine in the ratio of 2 : 1 by mass. The temperature of the mixture is $27^\circ C$. The ratio of root mean square speed of the molecules of the two gases $\left(\frac{v_{rms}^{Ar}}{v_{rms}^{Cl}}\right)$ is: (Atomic mass of argon = 40.0 u and molecular mass of chlorine = 70.0 u)
    A $\frac{\sqrt{7}}{2}$
    B $\frac{7}{2}$
    C $\frac{7}{4}$
    D $\frac{2}{\sqrt{7}}$

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