The vapor pressures of several solutions of water propanol
Chapter 17, Problem 17.57(choose chapter or problem)
The vapor pressures of several solutions of water propanol (CH3CH2CH2OH) were determined at various compositions, with the following data collected at 458C: xH2O Vapor Pressure (torr) 0 74.0 0.15 77.3 0.37 80.2 0.54 81.6 0.69 80.6 0.83 78.2 1.00 71.9 a. Are solutions of water and propanol ideal? Explain. b. Predict the sign of DHsoln for waterpropanol solutions. c. Are the interactive forces between propanol and water molecules weaker than, stronger than, or equal to the interactive forces between the pure substances? Explain. d. Which of the solutions in the table would have the lowest normal boiling point?
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