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  • Equal weighs of ethane and hydrogen are mixed in an empty container at <img alt="25^{\circ} \mathrm{C}" src="https://entrancecorner.oncodecogs.com/gif.latex?25%5E%7B%5Ccirc%7D%20%5Cmathrm%7BC%7D" /

Equal weighs of ethane and hydrogen are mixed in an empty container at 25^{\circ} \mathrm{C}. The fraction of the total pressure exerted by Hydrogen is -

Option: 1

1:2


Option: 2

1:1


Option: 3

1:16


Option: 4

15:16


Answers (1)

best_answer

let X g of each gas is mixed.
           \mathrm{ \text { mole of ethane }=\frac{x}{30} }
           \mathrm{ \text { mole of hydrogen }=\frac{x}{2}}

\mathrm{\therefore}   Mole fraction of hydrogen \mathrm{=\frac{x / 2}{x / 2+x / 30}=\frac{15}{16}} 

\mathrm{\Rightarrow \frac{\text { partial pressure of } \mathrm{H}_2}{\text { Total pressure }}=\text { mole fraction of Hydrogen }}

\mathrm{=15:16}

Posted by

vishal kumar

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