3) Carbon dioxide and nitrogen experience equimolar counterdiffusion in a circular tube whose length and diameter are 1m and 50 mm respectively. The system is at a total pressure of latm and at a temperature of 25 C. The ends of the tubes are connected to large chambers in which the species concentrations are maintained at fixed values. The partial pressures of CO2 at one endis 100 mm Hg, while at the other end it is 50 mm Hg. What is the mass transfer rate of CO2 through the tube? Take DAB = 0.16×10-4 m²/s