(a) Estimate the diffusivity of naphthalene (left(mathrm{C}_{10} mathrm{H}_{8} ight)) in air at (303 mathrm{~K}) and 1 bar....
Question:
(a) Estimate the diffusivity of naphthalene \(\left(\mathrm{C}_{10} \mathrm{H}_{8}\right)\) in air at \(303 \mathrm{~K}\) and 1 bar. Compare it with the experimental value of \(0.087 \mathrm{~cm}^{2} / \mathrm{s}\) reported in Appendix A. The normal boiling point of naphthalene is \(491.1 \mathrm{~K}\), and its critical volume is \(413 \mathrm{~cm}^{3}\) / mol.
(b) Estimate the diffusivity of pyridine \(\left(\mathrm{C}_{5} \mathrm{H}_{5} \mathrm{~N}\right)\) in hydrogen at \(318 \mathrm{~K}\) and \(1 \mathrm{~atm}\). Compare it with the experimental value of \(0.437 \mathrm{~cm}^{2} / \mathrm{s}\) reported in Appendix A. The normal boiling point of pyridine is \(388.4 \mathrm{~K}\), and its critical volume is \(254 \mathrm{~cm}^{3} / \mathrm{mol}\).
(c) Estimate the diffusivity of aniline \(\left(\mathrm{C}_{6} \mathrm{H}_{7} \mathrm{~N}\right)\) in air at \(273 \mathrm{~K}\) and \(1 \mathrm{~atm}\). Compare it with the experimental value of \(0.061 \mathrm{~cm}^{2} / \mathrm{s}\) (Guilliland, 1934). The normal boiling point of aniline is \(457.6 \mathrm{~K}\), and its critical volume is \(274 \mathrm{~cm}^{3} / \mathrm{mol}\).
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