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X and Y are two volatile liquids with mo...

`X` and `Y` are two volatile liquids with molar weights of `10gmol^(-1)` and `40gmol^(-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 atm pressure and a temperature of `300K`. Vapours of `X` and `Y` react to form a product whichh 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 two vapours.

The experimental value of `d` is found to be smaller than the estimate obtained using Graham's law. This is due to

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X and Y are two volatile liquids with molar weights of 10gmol^(-1) and 40gmol^(-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 atm pressure and a temperature of 300K . Vapours of X and Y react to form a product whichh 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 two vapours. The value of d in cm (shown in figure), as estimated from Graham's law, is

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