X and Y are two volatile liquids with molar weights of 10 g mol –1 and 40 g mol –1…
Chemistry · JEE Advanced · NTA Exams — States of Matter (Gases and Liquids)
X and Y are two volatile liquids with molar weights of 10 g mol–1 and 40 g mol–1 respectively. Two cotton plugs, one socked in X and the other soaked in Y, are simultaneously placed at the ends of a tube of length L = 24 cm, as shown in the figure. The tube is filled with an inert gas at 1 atmosphere pressure and a temperature of 300 K. Vapours of X and Y react to form a product which is first observed at a distance d cm from the plug soaked in X. Take X and Y to have equal molecular diameters and assume ideal behaviour for the inert gas and the two vapours.
The value of d in cm (shown in the figure), as estimated from Graham’s law, is : (2014)
- 8
- 12
- 16
- 20
Answer
(C) 16
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