15. 2 Plot the vapour pressure data for a mixture of benzene (B) and ethanoic acid (E) given below and plot the vapour pressure / composition curve for the mixture at 5 0 \ deg C. 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. 0 . 0 1 600.0439XE

15. 2 Plot the vapour pressure data for a mixture of benzene (B) and ethanoic acid (E) given below and plot the vapour pressure / composition curve for the mixture at 5 0 \ deg C. 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. 0 . 0 1 600.0439XE

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

15. 2 Plot the vapour pressure data for a mixture of benzene (B) and ethanoic acid (E) given below
and plot the vapour pressure / composition curve for the mixture at 5 0 \ deg C. 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. 0 . 0 16 0 0.0439XE
0.08350.11380.17140.4840.9671.5351.892.45 Pi / kPa Pg / kPa
35.05 34.2933.2832.6430.900.36960.58340.29730.66040.84370.99
Xx3.834.845.363.316.767.29 Pp / kPa Pg / kPa
26.0820.4228.1618.0110.00.47

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