Question

Methane diffuses at steady state through a tube containing helium for the case equimolar counter diffusion. At point 1, the partial pressure of methane is 55 kPa and at point 2, 0.03 m apart is 15 kPa. The total pressure is 101.325 kPa and temperature is 298 k, at this temperature and pressure the value of diffusivity is 6.75 × 10-5 m2 /s. Calculate (a) the steady state flux of methane from point 1 to point 2 (b) the partial pressure of methane at point 0.01 m apart from point 1 for the above case

Answer 1