Two gases X and Y have their molecular speed in ratio of 3:1 at certain temperature. The ratio of th — States 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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