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Real Gases

Four rubber t...

Question

Four rubber tubes are respectively filled with $H_{2}, O_{2}, N_{2}$ and $H e$ . The tube which will be reinflated first is:

A

H_{2}

filled tube

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B

O_{2}

filled tube

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C

N_{2}

filled tube

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D

H e

filled tube

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Solution

The correct option is A $H_{2}$ filled tube
Hydrogen filled tube will be reinflated first as the rate of diffusion of hydrogen is maximum.
The rate of diffusion is inversely proportional to the square root of molar mass.

$r \propto \sqrt{\frac{1}{M}}$

The molar mass of hydrogen is minimum among all others.

Hence, the correct option is $A$

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