3. Estimation of liquid diffusivity. Estimate the DAB (in cm²/s) for a dilute aqueous solution of acetic acid at 12.5 °C, using the Wilke-Chang equation (Eqn 17.8-8). The density of pure acetic acid is 0.937 g/cm³ at its normal boiling point, and the dilute solution viscosity μ = 1.22 cP at 12.5 °C. The molecular weight of water is 18.016 g/mol and acetic acid is 60.052 g/mol. WB = 2.6. AB=7.4 × 10-8 VMB T HV0.6 A (17.8-8)