In an equimolar counter diffusion of A in B, the bulk concentration and the flux of A were measured to be 0.002 kmol/m³ and 0.08 kmol/hr.m2, respectively. Given the total pressure of the system, P = 1.5 bar; the temperature, T= 250°C; and the diffusion coefficient at 1 bar and 100°C, DAB = 0.16 cm2/s, calculate:

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