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You perform a distillation at two different pressures like Jaren showed in the video. The first distillation was done on a day when the pressure was 760 mmHg .  The boiling point (the range where we saw drips come over) was 72 oC. (This is the normal boiling point ) Then you connected the adapter to a vacuum.  The manometer shows the pressure is now 250 mmHg.   The liquid now boils at 50 oC.  What is the enthalpy of vaporization in kJ/mol? Choose closest answer.   15.9 kJ/mol 46.8 kJ/mol 5.6 kJ/mol 24.9 kJ/mol 8.8 kJ/mol 20.1 kJ/mol 89.2 kJ/mol

You perform a distillation at two different pressures like Jaren showed in the video. The first distillation was done on a day when the pressure was 760 mmHg .  The boiling point (the range where we saw drips come over) was 72 oC. (This is the normal boiling point ) Then you connected the adapter to a vacuum.  The manometer shows the pressure is now 250 mmHg.   The liquid now boils at 50 oC.  What is the enthalpy of vaporization in kJ/mol? Choose closest answer.   15.9 kJ/mol 46.8 kJ/mol 5.6 kJ/mol 24.9 kJ/mol 8.8 kJ/mol 20.1 kJ/mol 89.2 kJ/mol

Chemistry
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
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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You perform a distillation at two different pressures like Jaren showed in the video.
The first distillation was done on a day when the pressure was 760 mmHg
.
 The boiling point (the range where we saw drips come over) was 72 oC.
(This is the normal boiling point )
Then you connected the adapter to a vacuum.  The manometer shows the pressure is now 250 mmHg.   The liquid now boils at 50 oC.  What is the enthalpy of vaporization in kJ/mol?
Choose closest answer.
 
15.9 kJ/mol
46.8 kJ/mol
5.6 kJ/mol
24.9 kJ/mol
8.8 kJ/mol
20.1 kJ/mol
89.2 kJ/mol 
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