At 40 degrees H2O2 decomposes according to reaction:
2H2O -> 2H20+O2
Data collected for the concentration of H2O2 at various times.
Time (s) [H2O2](mol/L)
0 1.00
2.16 x10^4 0.5
4.32 x 10^4 0.25
calculate avaerage rate of decomposition of H2O2 between 0 & 4.32 x 10^4 s.