The rate law for a certain reaction is second order with respect to one of the reactants, R. presume you study this reaction, examining the absorbance of light at the analytical wavelength for R as well as record the data with respect to elapsed time. As well suppose that the concentration of all the other reactants are in large excess and that R is the only colored species involved. Define which function, A ln A, or !/A, would yield a strait line graph when plotted against elapsed time.