C6H6 diffuses into N2 in a stable state along a pipe at a temperature of C C and a pressure of 1 atm. The partial pressures of C6H6 at one end of the pipe are PA1 0.27 atm and PA2 0.053 atm. The cross- sectional area of the pipe is 0.015m at point 1 and 0.033m at point 2. The distance between point 1 and point 2 where pressures are measured is 3.0 m. The diffusion coefficient of benzene into nitrogen is 0.088 m/ s. Calculate the flux in unit kmol/ s