For A?products , time and concentration data were collected and plotted as shown

For A?products , time and concentration data were collected and plotted as shown. [] () () 0.900 00.0 0.474 30.0 0.321 60.0 0.243 90.0 A plot of the concentration of A versus time is concave up and decreases with time. A plot of the natural logarithm of the concentration of A versus time is concave up and decreases with time. A plot of one over the concentration of A versus time increases linearly with time. Determine the reaction order, the rate constant, and the units of the rate constant.