Answer Happy

Problem 10: Benzene and 1-Butanol Vapor-liquid equilibrium data for mixtures of benzene and 1-butanol at latm are given in the following table: T [K] 390.85 T [K] X1 yi [mol/mol] [mol/mol 0.00000 0.00000 0.00400 0.02500 0.04000 0.21700 X1 [mol/mol] 0.47500 yi [mol/mol 0.81900 0.84700 359.54 357.69 0.56000 390.05 385.15 380.25 356.34 0.63100 0.86700 0.08500 0.38000 355.13 0.71400 0.88500 0.13400 0.51000 0.79000 0.90400 375.37 373.37 371.85 354.51 354.02 0.16100 0.56000 0.84800 0.92000 0.18000 0.59000 0.89700 0.94700 353.82 353.54 368.75 0.23400 0.66000 0.92800 0.95200 365.40 0.30800 0.72400 353.43 0.94200 0.96000 362.84 0.36900 0.77900 353.36 0.96300 0.94800 0.95400 361.43 0.39700 0.78700 353.31 0.96600 359.54 0.81900 353.24 1.00000 1.00000 0.47500 0.56000 357.69 0.84700 a) Use the given data to construct a T-xy diagram for this system. b) A temperature measuring device is used for a two-phase mixture at equilibrium reads 90°C at the system pressure of 1 atm. Use the T-xy diagram to estimate the mole fractions of benzene in the liquid and vapor phases. c) An equimolar mixture is fed to an evacuated vessel and allowed to come to equilibrium at 339K and 1 atm. Estimate (1) the molar compositions of each phase and (2) The percentage of the total moles in the vessel that are in the vapor phase. d) Use Raoult's law to estimate the bubble-point temperature and vapor composition in equilibrium with an equimolar liquid mixture. e) Use Raoult’s law to estimate the dew-point temperature and liquid composition in equilibrium with an equimolar mixture. f) How would the Tbubble and Tdew would change if composition of 1-butanol got increased to 0.65 12