The order of decomposition of Nitrogen pentaoxide? 2N2O3 —> 2N2O4 +O2 is:

First order

Second order

Third order

Forth order

The decomposition of dinitrogen pentoxide (N2O5) as shown in the reaction 2N2O5 → 2N2O4 + O2 is a first-order reaction.

This means the rate of the reaction is directly proportional to the concentration of N2O5.