Two large vessels are connected by a tube 5 cm in diameter and 15 cm length. Vessel (1) contains 80 mole% N2 (A) and 20 mole% O2(B); vessel (2) contains 20 mole% N2 and 80 mole% O₂. The temperature is 20 °C and the total pressure is 2 atm. Calculate: i) The diffusivity of N₁ in O2 at 2 atm and 20 °C. ii) The steady state flux (in kmole/s.m) and the rate of transport of N2 (in kmole/s) from vessel (1) to vessel (2), iii) The steady state flux (in kmole/s.m²) and the rate of transport of O2 (in kmole/s) from vessel (1) to vessel (2) and iv) The partial pressure of N2 in the tube 0.05 m from vessel (1) in kPa.