States of Matter and Gaseous StatemediumMCQ SINGLE

Two gases X and Y have their molecular speed in ratio of 3:1 at certain temperature. The ratio of thStates of Matter and Gaseous State Chemistry Question

Question

Two gases X and Y have their molecular speed in ratio of 3:1 at certain temperature. The ratio of their molecular masses $M_x : M_y$ is

Answer: C

💡 Solution & Explanation

vx/vy = sqrt(My/Mx). 3/1 = sqrt(My/Mx). My/Mx = 9/1 -> Mx/My = 1/9. Therefore, correct answer is C.

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