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Nitrogen tetraoxide (N(2)O(4)) decompose...

Nitrogen tetraoxide `(N_(2)O_(4))` decomposes as :
`N_(2) O_(4)(g) rarr 2NO_(2)(g)`
If the pressure of `N_(2)O_(4)` falls from 0.50 atm to 0.32 atm is 30 minutes the rate of appearance of `NO_(2)(g)` is :

A

0.006 atm `"min"^(-1)`

B

0.003 atm `"min"^(-1)`

C

0.012 atm `"min"^(-1)`

D

0.024 atm `"min"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
Rate of disappearance of `N_(2)O_(4)`
`= (Delta[N_(2)O_(4)])/(Deltat)= (0.50-0.32)/(30)`
`= 0.006 atm min^(-1)`
Rate of appearance of `NO_(2)` = Twice rate of disappearance of `N_(2)O_(4)`
`2xx0.006 = 0.012 atm "min"^(-1)`
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