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Chemical Kinetics and Nuclear Chemistry question

2014 · Shift 2 · Q12
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Chemical Kinetics and Nuclear Chemistry question

2014 · Shift 2 · Q12

JEE AdvancedChemistryChemical Kinetics and Nuclear ChemistryMCQ+3 / −1
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 soaked 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. JEE Advanced 2014 Paper 2 Offline Chemistry - Chemical Kinetics and Nuclear Chemistry Question 11 English ComprehensionThe experimental value of d is found to be smaller than the estimate obtained using Graham's law. This is due to
  1. A
    larger mean free path for X as compared to that of Y.
  2. B
    larger mean free path for Y as compared to that of X.
  3. C
    increased collision frequency of Y with the inert gas as compared to that of X with the inert gas.
  4. D
    increased collision frequency of X with the inert gas as compared to that of Y with the inert gas.
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