1.22a, d. Liquid diffusivity: Hayduk and Minhas correlation.
Estimate the diffusivity of carbon tetrachloride in a dilute solution in n-hexane at 298 K using the Hayduk and Minhas correlation for nonaqueous solutions. Compare the estimate to the reported value of 3.7 ´ 10Ð5 cm2/s. The following data are available (Reid, et al., 1987):
Solution
1.23b. Estimating molar volumes from liquid diffusion data.
The diffusivity of allyl alcohol (C3H6O) in dilute aqueous solution at 288 K is 0.9 ´ 10Ð5 cm2/s (Reid, et al., 1987). Based on this result, and the Hayduk and Minhas correlation for aqueous solutions, estimate the molar volume of allyl alcohol at its normal boiling point. Compare it to the result obtained using the data on Table 1.2. The viscosity of water at 288 K is 1.15 cP.
Solution
Iniitial estimates
From Table 2.1