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If density of a gaseous mixture of dinitrogen tetroxide `(N_(2)O_(4))` and nitrogen dioxide `(NO)_(2)` is 2.5 gm/L at `127^(@)C` and 1 atm pressure. [R=0.08 atm lit/mole-k] Partial pressure of `N_(2)O_(4)` is:A. 0.62atmB. 0.47atmC. 0.74atmD. 0.26atm |
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Answer» `N_(2)O_(4)hArr2NO_(2)` `a_(0)-a_(0)aloha 2a_(0)alpha` `M_(avg)=(a_(0)xxM.Wr.N_(2)O_(4))/(a_(0)(1+alpha))` `PM=dRT` `1xxM_(avg)=2.5xx0.08xx400` `M_(avg)=(92)/(1+alpha)=80` `P_(N_(2)O_(4))=(1-alpha)/(1+alpha)xxP_(1)` `1+alpha=(92)/(80)` `P_(N_(2)O_(4))=(0.85)/(1.15)xx10.74` atm `alphah=0.15` `P_(NO_(2))=1-P_(N_(2)O_(4)` `1-0.74=0.26` atm |
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