I need answer ONLY in SIMULINK ( attach screenshot of simiulink model with steps)

Question 3: Consider the following set of differential equations that describe the change in concentration three species in a tank; dtdCadtdCbdtdCc=k1Ca=k2Cb+Ca=k2CcCb Where, k1=1.65hr1 and k2=2.5hr1 and at time t=0,Ca=6.8mol and Cb=C=0mol. Solve the system of equations and plot the change in concentration of each species over time. Find the concentrations of species a,b and c after 15 seconds. Plot the results ( Ca,Cb and Cc v.s. time)