1. handles a binary liquid mixture of species A and B. The liquid may be considered to be incompressible and its density may be assumed to be constant (independent of composition). The inlet mass flow rates are m1=200kg/min and m2=300kg/min. The outlet mass flow rate is m=m1+m2=500kg/min. The mass of the liquid in the tank is found to be m=2000kg. All flowrates and the mass of the liquid in the tank are constants throughout the process. The contents are well-mixed by a stirrer so that there are no concentration gradients within the tank. The process has been operating at steady state for a long period of time and the mass fraction of A in the two inlets is found to be x1=0.2 and x2=0.4, respectively. However, the mass fraction of A in both inlets changes suddenly from x1=0.2 and x2=0.4 to x1=0.25 and x2=0.5. Find: (a) The new steady-state value of the mass fraction of A in the outlet, x. (b) The variation of the outlet mass fraction of A with time, x=x(t). Express the result in terms of the variable y=(xx0)/(xx0) where x0=x(0). Sketch y vs t/ where =m/m. (c) The time required for x to reach a value of x=0.35. (d) The time, ts, required to reach steady-state behavior