For the decomposition of `N_(2)O_(5)((g))`, it is given that:
`2N_(2)O_(5g)rarr 4NO_(2(g))+O_(2(g))`,
Activation energy `E'_(a)` then ,
`E_(a), N_(2)O_(5(g))rarr 2NO_(2(g))+1//2O_(2(g))`,
Activation energy `E_(a)^(')` then:

We can represent the decomposition of N_(2)O_(5)(g) at a fixed temperature by the following two chemical equations: (P) 2N_(2)O_(5)(g) rarr 4NO_(2)(g)+O_(2)(g) , Activation energy E_(a) (Q) N_(2)O_(5)(g) rarr 2NO_(2)(g) +(1)/(2)O_(2)(g) , Activation energy E'_(a) then:

For the first order reaction 2N_(2)O_(5)(g) rarr 4NO_(2)(g) + O_(2)(g)

For a reaction, 2N_(2)O_(5)(g) to 4NO_(2)(g) + O_(2)(g) rate of reaction is:

The molecularity of a complex reaction given below is : 2N_(2)O_(5)(g)to4NO_(2)(g)+O_(2)(g)