The vapor pressures (VP) of several water-propanol (CH3CH₂CH₂OH) solutions were determined at various compositions, with the following data collected at 45°C: X H₂O Total VP (Torr) 74.0 0.15 0.37 0.54 77.3 80.2 81.6 80.6 0.69 0.83 78.2 1.00 71.9 a) Are solutions of water and propanol ideal? Explain. b) Are the interactive forces between propanol and water molecules weaker than, stronger than, or equal to the interactive forces between the pure substances? Explain. c) Predict the sign of AHsoln for water-propanol solutions. (Hint: think about deviation type) d) Which of the solutions in the data would have the lowest normal boiling point? Explain

The vapor pressures (VP) of several water-propanol (CH3CH₂CH₂OH) solutions were determined at various compositions, with the following data collected at 45°C: X H₂O Total VP (Torr) 74.0 0.15 0.37 0.54 77.3 80.2 81.6 80.6 0.69 0.83 78.2 1.00 71.9 a) Are solutions of water and propanol ideal? Explain. b) Are the interactive forces between propanol and water molecules weaker than, stronger than, or equal to the interactive forces between the pure substances? Explain. c) Predict the sign of AHsoln for water-propanol solutions. (Hint: think about deviation type) d) Which of the solutions in the data would have the lowest normal boiling point? Explain

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

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The vapor pressures (VP) of several water-propanol (CH3CH₂CH₂OH) solutions were
determined at various compositions, with the following data collected at 45°C:
X H₂O
0
Total VP (Torr) 74.0
0.15 0.37 0.54 0.69 0.83 1.00
77.3 80.2 81.6 80.6 78.2 71.9
a) Are solutions of water and propanol ideal? Explain.
b) Are the interactive forces between propanol and water molecules weaker than,
stronger than, or equal to the interactive forces between the pure substances? Explain.
c) Predict the sign of AHsoln for water-propanol solutions. (Hint: think about deviation
type)
d) Which of the solutions in the data would have the lowest normal boiling point?
Explain

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