A flask contains argon and chlorine in the ratio of 2: 1 by mass. The temperature of the mixture is 27^° C. The ratio of root mean square speed of…

A flask contains argon and chlorine in the ratio of $\displaystyle 2: 1$ by mass. The temperature of the mixture is $\displaystyle 27^{\circ} \mathrm{C}$. The ratio of root mean square speed of the molecules of the two gases $\displaystyle \left(\frac{\mathrm{v}_{\mathrm{rms}}^{\mathrm{Ar}}}{\mathrm{v}_{\mathrm{rms}}^{\mathrm{Cl}}}\right)$ is : (Atomic mass of argon $\displaystyle =40.0 \mathrm{u}$ and molecular mass of chlorine $\displaystyle =70.0 \mathrm{u}$ )