second order derive the integrated rate law for reaction (1). plot the concentrations of a, b, and c as a function of time. assume their initial concentrations (at t=0) are 1.0, 2.0, and 0.0 mol/cm3 respectively. consider three different values for rate constants: 0.001, 0.01, and 1.0 cm3/(mol.s). discuss how the rates of reactions changed with the values of the rate constant, k.