Calculate the bubble point temperature at P=1 atm for the mixture where vapor pressure given by Antonio eq. TBoiling Component H2O CCI4 C6H6 B 18.3 3816.1 15.8 2808.1 15.9 2788.5 A C 0.25 100 -46.1 0.25 76.5 -45.9 0.5 80.1 -52. 3

You must base your solutions for this problem on vapor pressure correlations in the form of Antoine's Equation In psat 1 mm Hg with the following parameter values: Compound i benzene toluene Ethylbenzene n-propylbenzene n-butylbenzene A₁ 15.9008 16.0137 16.0195 16.0062 16.0793 B₁ A₁ T+ Cu T+C₁ B₁ 2788.51 3096.52 3279.47 3433.84 3633.40 G₁ -52.36 -53.67 -59.95 -66.01 -71.77 T is in Kelvin and Pat is in mm Hg. Note that more data is given than needed to solve the problem. (As is often the case when looking up data...) a) Calculate and plot the Txy phase diagram for vapor-liquid equilibria of binary mixtures of benzene (light) and ethylbenzene (heavy) at atmospheric pressure. Assume validity of Raoult's law. b) Use your results from part a) to plot the xy equilibrium curve for vapor-liquid equilibria of binary mixtures of benzene and ethylbenzene at atmospheric pressure. Remember that the plots are to use mole fraction of the lighter component as their axes. Banzane *

P2

Draw a Pxy diagram for an aqueous solution of NH3. The temperature is such that the vapor pressure of the pure water is 5 kPa and the vapor pressure of pure NH3 is 600 Pa. You need to include the bubble line and the dew 7. line. (a) What is the vapor pressure of the solution when rNH, = 0.6? (b) In which phase the solution will be at P = 4.8 kPa? (c) In which phase the solution will be at P =0.2 kPa? (d) Draw the path for a process that takes a liquid with INH, = 0.6 %3D and P= 4.8 kPa to P= 0.2 kPa.