Decomposition of N2O5

Kurt Bryan and SIMIODE

This is a Mathematica notebook to illustrate the analysis of data concerning the decomposition of N2O5.

The times at which concentration data was taken (seconds):

times ={0,600,1200,1800,2400,3000,3600,4200,4800,6000}

The measured concentration (moles per liter) at each time:

data = {0.31,0.254,0.208,0.172,0.141,0.116,0.0964,0.0812,0.0669,0.0464}

And plot raw data  (first install into 2 x 6 matrix "pdata"):

pdata = Transpose[{times,data}];
plt1=ListPlot[pdata,AxesLabel->{"time (seconds)","concentration (moles/liter)"}]

Not 0th order. Perhaps first order? Try a logarithmic transformation of the data, as was done for H2O2 or butadiene; see those worksheets.