Calculation of reactors task 2

The reaction A + b ↔ R + S takes place in the liquid phase and is carried out in a flow reactor of ideal mixing with a volume of 0.12 m3; k1 = 0.118 m3/кмольּ; k2 = 0.05 m3/кмольּ C. the reactor is acquired continuously with the same volume velocities of the two fluid streams, one of which contains 2.8 KMOL/m3 of compound A, and the other 1.6 KMOL/m3 of substance B. you want to determine what speed is needed to apply each solution to stay in the office reacted 75% of the substance V. to Take the density of the liquid in the reaction process does not change.