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For the reaction `N_(2)O_(5)(g)toN_(2)O_(4)(g)+1//2O_(2)(g)` initial pressure is 114 mm and after 20 seconds the pressure of reaction mixture becomes 133 mm then the average rate of reaction will beA. `1.9 atm S^(-1)`B. `8.75xx10^(-3) atm S^(-1)`C. `2.5xx10^(-3)atmS^(-1)`D. `6.65atmS^(-1)` |
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Answer» Correct Answer - C `{:(,N_(2)O_(5),to,N_(2)O_(4)+,(1)/(2)O_(2),,),(t=0,,11MM,O,O,,),(t=20s,114-x,,x,(x)/(2),,):}` `:.114+(x)/(2)=133rArrx=38 mm` `r=(x)/(t)=(38)/(20)` `r=1.9mmsec^(-1)` `r=(1.9)/(760)=2.5xx10^(-3)atmsec^(-1)` |
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