b. In an oxygen-nitrogen gas mixture at a pressure of 1 atm and temperature of \( 25^{\circ} \mathrm{C} \), the oxygen concentrations at two planes 2 mm apart are 10 and \( 20 \mathrm{vol} \% \), respectively. Calculate the flux of diffusion of the oxygen for the case where: (10 marks) i. The nitrogen is non-diffusing ii. There is equimolar counter diffusion of the two gases. \[ \left[\mathrm{R}=8.314 \mathrm{~m}^{3} \cdot \mathrm{~Pa} /(\mathrm{K} . \mathrm{mol})\right] \]
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- Pressure \( P = 1 \, \text{atm} = 101325 \, \text{Pa} \) - Temperature \( T = 25^\circ \text{C} = 298 \, \text{K} \) - Distance \( \Delta z = 2 \, \text{mm} = 0.002 \, \text{m} \) Show more…
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