Note: All assumptions made when setting up the problem need to be listed (eg., system is at steady state: T.P are constant etc.). Provide a sketch of the problem geometry with the applicable concentration profiles. All calculation steps and conversion factors should be provided for full credit. All gases are to be considered ideal unless stated otherwise. 1. (30 points) CO2 is diffusing through N2 at atmospheric pressure (101,32kPa) and 25C in a cylindrical tube. The partial pressure of CO2 at point A is 456mmHg and is 76mmHg at a point B which is 0.2m away from A in the direction of diffusion. Diffusivity is 1.6710 5m2/s. The gas phase as a whole (N2+CO2) is stationary. Calculate the total molar flux and total mass flux of CO2 in SI units. 2. (35 points) Consider the same system as problem 1. The gas phase as a whole (N2+CO2) is moving at 2m/s. All other parameters provided in Q1 still apply. Calculate the total molar flux and total mass flux of CO2 in SI units. 3. (35 points) Consider the same system as problem 1. The gas phase as a whole (N2+CO2) is stationary but now equimolar counter diffusion of N2 and CO2 is occurring. All orher parameters provided in Q1 still apply. Calculate the total molar flux and total mass flux of CO2 and N2 in cgs units