Ammonia gas (A) is diffusing through a uniform tube 0.10 m long containing N₂ gas (B) at 1.0132×105 Pa pressure and 298 K. At point 1, PAI= 1.013 × 104 Pa and at point 2, pÃ2 = 0.507×10+Pa. The diffusivity DAB = 0.230 × 10+ m²/s. (a) Calculate the flux J* (in kmol/s-m²) at steady state.

(b) Repeat for J*B (in kmol/s·m²).