A flask contains argon and chlorine in the ratio of 2 : 1 by mass. The temperature of the mixture is 27. The ratio of root mean square speed of the molecules of the two gases ((v^Arᵣₘₛ)/(v^Clᵣₘₛ)) is: (Atomic mass of argon = 40.0 u and molecular mass of chlorine = 70.0 u)

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(2) (√7)/2. vᵣₘₛ=√(3RT)/M, and both gases are at the same temperature. (v^Arᵣₘₛ)/(v^Clᵣₘₛ)=√(M_Cl)/(M_Ar)=√(70)/(40)=√7/4. =(√7)/2. The 2 : 1 mass ratio does not enter.

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 the molecules of the two gases ((v^Arᵣₘₛ)/(v^Clᵣₘₛ)) is: (Atomic mass of argon = 40.0 u and molecular mass of chlorine = 70.0 u)

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