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For the reaction N(2)O(5)(g)toN(2)O(4)(g...

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 be

A

`1.25xx10^(-3) atm sec^(-1)`

B

`2.5xx10^(-3) atm sec^(-1)`

C

`9.5xx10^(-1) atm sec^(-1)`

D

`4.75xx10^(-1) atm sec^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`{:(N_(2)O_(5),to,N_(2)O_(4),+,(1)/(2)O_(2)),(114.p,,p,,(1)/(2)p):}`
`P_(T)=114+(P)/(2)=133rArrp=38`
`K=(2.303)/(20)"log"((114)/(76))`
`K(Pt)=2.07xx10^(-3)`at m `sec^(-1)`
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