Three balloons are filled with equal moles of hydrogen, nitrogen and helium. Which balloon will contract first, if the same size holes are made in all of them?

Balloon filled with hydrogen

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Balloon filled with nitrogen

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Balloon filled with helium

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All will contract at the same time

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Solution

The correct option is A Balloon filled with hydrogen
Given : Equal moles of $H_{2}$ , $N_{2}$ and $H e$
For a given mole , weight of the gasses are in the order $H_{2} < H e < N_{2}$
We know that $Pressure Rate \propto \frac{1}{\sqrt{molar mass}}$
Hence, balloon filled with hydrogen has more diffusion rate, so it contacts first.

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Three balloons are filled with equal moles of hydrogen, nitrogen and helium. Which balloon will contract first, if the same size holes are made in all of them?

The correct option is A Balloon filled with hydrogenGiven : Equal moles of H2, N2 and He For a given mole , weight of the gasses are in the order H2<He<N2We know that Pressure Rate∝1√molar massHence, balloon filled with hydrogen has more diffusion rate, so it contacts first.