The following reaction was monitored as a function of time: AB→A+B A plot of 1/[AB] versus time yields a straight line with slope 5.8×10−2 (M⋅s)−1 .What is the value of the rate constant (k) for this reaction at this temperature?What is the half-life when the initial concentration is 0.55 M?If the initial concentration of AB is 0.220 M , and the reaction mixture initially contains no products, what are the concentrations of A and B after 70 s ?