A volume of 180 ml of hydrocarbon takes 15 min to diffuse. Under the same conditions 120 ml of sulph — States of Matter and Gaseous State Chemistry Question
Question
A volume of 180 ml of hydrocarbon takes 15 min to diffuse. Under the same conditions 120 ml of sulphur dioxide takes 20 min. The molecular weight of hydrocarbon is
Answer: A
💡 Solution & Explanation
r_HC = 180/15 = 12 ml/min . r_SO2 = 120/20 = 6 ml/min . r_HC / r_SO2 = 2 => √(M_SO2 / M_HC) = 2 => 64 / M_HC = 4 => M_HC = 16 .
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