The ratio of masses of Argon and Chlorin...

The ratio of masses of Argon and Chlorine in a flask is 2:1 at a temperature of 300 K.Find the ratio of (1) average KE per molecule and (2) root mean square velocity of their molecules. At. Mass of Argon=39.9 g/mole and chlorine = 70.9 g/mole.

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