Problem 4: Two streams containing species A are blended in a well stirred tank (see figure below). A stream also exits the tank as shown in the figure. Stream 1 P. () X(t). V. Stream 3 P:(0). X:(0). 30 Stream 2 m pat), X30). V 2010) The density, mass fraction of A and volumetric flow rate of the streams are denoted by p. X and V, respectively. The volume of the tank is denoted V(t). Write an unsteady state material balance on total mass and on the mass of species A for the above system using the indicated variables (including V (t)) and assume that no chemical reaction occurs