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Partial pressures of the component gases...

Partial pressures of the component gases in a gas-mixture are: `H_(2)=300mm: CH_(4)=150mm:N_(2)=250` mm. what is the percentage of `N_(2)` gas by volume in the mixture?

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`x_(N_(2))=("Partial volume of "N_(2))/("total pressure")=(250)/(300+150+250)=0.3571`
Volume percent of `N_(2)` in the mixture=Mole-fraction of `N_(2)` in the mixture `xx100=35.71%`.
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