One mole of gas X (in container of V L) and two moles of gas Y (in container of V L)enters from the end P and Q of the empty cylinder respectively. The cylinder has the uniform area of cross section, shown as under. The length of the cylinder is 150 centimeters. The gas X intermixes with gas Y initially at A. If the molecular mass of the gases Y & X is 80 u and 20 u respectively then what will be the distance of point A from Q in meters? Temperature remains constant and process of meeting of two gases occurs in very short interval of time.
(Report the answer after dividing with 7.5)

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answer is 1.

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Detailed Solution

$\frac{dis \tan ce travelled by gas X}{dis \tan ce travelled by gas Y} = 1 : 1$

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