1.

The decomposition of N_(2)O_(5) in (C)Cl_(4) at 318 K is studied by monitoring the concentration of N_(2)O_(5) in the solution. Initially the concentration of N_(2)O_(5) is 2.4 mol L^(-1). What is the rate of production of NO_(2) during this period in mol L^(-1)min^(-1) ?

Answer»

`4 XX 10^(-3)`
`2 xx 10^(-3)`
`1 xx 10^(-3)`
`2 xx 10^(-4)`

SOLUTION :a) `2N_(2)O_(5) to 4NO_(2) + O_(2)`
`1//2 xx "Rate of disappearance of" N_(2)O_(5)`
`=1/4 xx "Rate of production of" NO_(2)`
Rate of production of `NO_(2)` = `4/2` Rate of disappearance of `N_(2)O_(5)`
`(2.4 -2.0)/(200) = 0.4/100 = 4 xx 10^(-3) MOL L^(-1)min^(-1)`


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