. Diffusion of CO, in a Binary Gas Mixture. The gas CO2 is diffusing at steady state through a tube 0.20 m long having a diameter of 0.01 m and containing N₂ at 298 K. The total pressure is constant at 101.32 kPa. The partial pressure of CO2 is 456 mm Hg at one end and 76 mm Hg at the other end. The diffusivity DAB is 1.67 x 10-5 m²/s at 298 K. Calculate the flux of CO2 in cgs and SI units for equimolar counterdiffusion.