1. The concentration vs time data below was collected for the decomposition of N2O5 at 55C. What quantity should be plotted to find out if the reaction is first order with respect to N2O5 ? 2N2O5(g)4NO2(g)+O2(g) 2. In Excel, make a plot to show that the decomposition of N2O5 is first order. Write out the rate equation and find the value for the rate constant, k. 3. Using the data in Question 1, determine the half life ( t1/2) of the reaction knowing that the reaction is first order with respect to N2O5. Recall that for a first order reaction t1/2=0.693/k