First slide

Gaseous state

Question

A gaseous mixture containing equal moles of H₂,O₂ and He is subjected to series of effusion steps. The composition (by moles) of effused mixture after 4 effusion steps is x: 1 : y respectively. Then find the value of $(\frac{x}{y})$

Moderate

Solution

For H₂ and He
$\begin{matrix} f^{4 th} = \frac{x / y}{1} = {(\sqrt{\frac{M_{He}}{M_{H_{2}}}})}^{4} \\ \frac{x}{y} = (\sqrt{2})^{4} = 4 \end{matrix}$

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