A pipeline containing ammonia gas is vented to ambient air via a (20-mathrm{m}) long, (3-mathrm{mm}) diameter tube.

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A pipeline containing ammonia gas is vented to ambient air via a \(20-\mathrm{m}\) long, \(3-\mathrm{mm}\) diameter tube. What is the mass flow ( \(\mathrm{g} /\) day) of ammonia into the atmosphere? What is the mass flow of air into the pipeline (g/day)? Temperature and pressure everywhere are \(25^{\circ} \mathrm{C}\) and \(101,325 \mathrm{~Pa}\), respectively. Assume pure ammonia at the pipeline and pure air at the air end of the tube. \(D_{\mathrm{AB}}=2.8 \times 10^{-5} \mathrm{~m}^{2} / \mathrm{s}\) (ammonia-air at \(\left.25^{\circ} \mathrm{C}\right)\). Assume ideal gas.

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