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The reaction, 2N(2)O(5)rarr 4NO(2)+O(2),...

The reaction, `2N_(2)O_(5)rarr 4NO_(2)+O_(2)`, shows an increase in concentration of `NO_(2)` by `20xx10^(-3)` mol `litre^(-1)` in `5` second. Calculate:
(a) rate of appearance of `NO_(2)`,
(b) rate of reaction and
(c ) rate dissappearance of `N_(2)O_(5)`.

Text Solution

Verified by Experts

Increase in concentration of `NO_(2)`
`=20xx10^(-3) mol litre^(-1)`
Time taken `=5 sec`
(a) `:.` Rate of appearance of `NO_(2)=(Delta[NO_(2)])/(Deltat)`
`=(20xx10^(-3))/(5)`
`=4xx10^(-3) mol litre^(-1) sec^(-1)`
(b) Rate of reaction `=-1/2(Delta[N_(2)O_(5)])/(Deltat)`
`=1/4(Delta[NO_(2)])/(Deltat)=(Delta[O_(2)])/(Deltat)`
`=1/4xx4xx10^(-3)`
`=1xx10^(-3) mol litre^(-1) sec^(-1)`
(c ) Rate of disappearance of `N_(2)O_(5)`
`=-(Delta[N_(2)O_(5)])/(Deltat)=1/2(Delta[NO_(2)])/(Deltat)`
`=1/2xx4xx10^(-3)`
`=2xx10^(-3) mol litre^(-1) sec^(-1)`
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