Plot the vapour pressure data for a mixture of benzene (B) and acetic acid (A) given below and plot the vapour pressure/composition curve for the mixture at 50°e. Then confirm that Raoult's and Henry's laws are obeyed in the appropriate regions. Deduce the activities and activity coefficients of the components on the Raoult's law basis and then, taking B as the solute,

its activity and activity coefficient on a Henry's law basis. Finally,

evaluate the excess Gibbs energy of the mixture over the composition range spanned by the data.

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0.0160 0.0439 0.0835 0.1714 XA 0.1138 2.45 PAKPA 0.484 1.535 1.89 0.967 34.29 33.28 PB/kPa 35.05 32.64 0.6604 30.90 0.8437 0.2973 0.3696 0.5834 XA 0.9931 PAKPA 3.31 5.36 7.29 3.83 4.84 6.76 PB/kPa 28.16 26.08 20.42 18.01 0.47 10.0