(A) Let the mass of $H_2$ be $w \ g$ and the mass of $O_2$ be $2w \ g$.Number of moles of $H_2$ $(n_{H_2})$ = $\frac{w}{2}$.Number of moles of $O_2$ $

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(A) Let the mass of $H_2$ be $w \ g$ and the mass of $O_2$ be $2w \ g$.Number of moles of $H_2$ $(n_{H_2})$ = $\frac{w}{2}$.Number of moles of $O_2$ $(n_{O_2})$ = $\frac{2w}{32} = \frac{w}{16}$.Total moles $(n_{total})$ = $\frac{w}{2} + \frac{w}{16} = \frac{8w + w}{16} = \frac{9w}{16}$.Mole fraction of $O_2$ $(x_{O_2})$ = $\frac{n_{O_2}}{n_{total}} = \frac{w/16}{9w/16} = \frac{1}{9}$.Partial pressure of $O_2$ = $x_{O_2} \times P_{total} = \frac{1}{9} \times p = \frac{p}{9}$ atm.

Class 11 Chemistry States of Matter Characteristics and Measurable properties of gases

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At $T \ K$,hydrogen and oxygen gases are mixed in the ratio of $1:2$ by mass in a closed vessel of volume '$V$' litres. If the total pressure of the gaseous mixture is '$p$' atm,the partial pressure of oxygen (in atm) is

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A
$\frac{p}{9}$
B
$9 p$
C
$\frac{8 p}{9}$
D
$\frac{p}{6}$

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Characteristics and Measurable properties of gases

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At $T \ K$,hydrogen and oxygen gases are mixed in the ratio of $1:2$ by mass in a closed vessel of volume '$V$' litres. If the total pressure of the gaseous mixture is '$p$' atm,the partial pressure of oxygen (in atm) is

Similar Questions

What is the ratio of the rates of diffusion of gases $A$ and $B$ having molecular weights $36$ and $64$ respectively?

$X \ mL$ of $H_2$ gas effuses through a hole in a container in $5 \ s$. The time taken for the effusion of the same volume of the gas specified below under identical conditions is:

The densities of hydrogen and oxygen are $0.09 \ g \ L^{-1}$ and $1.44 \ g \ L^{-1}$ respectively. If the rate of diffusion of hydrogen is $1$,then the rate of diffusion of oxygen in the same units will be:

Which shape does a liquid have in its lowest energy state?

$A$ mixture of equal masses of two gases with molecular weights $4$ and $40$ has a total pressure of $1.1 \, atm$. The partial pressure of the lighter gas in the mixture is ............ $atm$.

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