Compare the boiling points of the various isomeric hydrocarbons shown in the table below. Notice the relationship between boiling point and structure; branched-chain hydrocarbons have lower boiling points than the unbranched isomer. Speculate on possible reasons for this trend. Why might the intermolecular forces be slightly different in these compounds? Compound Boiling Point (°C) 68.9 Hexane 3-Methylpentane 2-Methylpentane 2,3- A Dimethylbutane 2,2- 63.2 60.3 58.0 49.7 Dimethylbutane O The more branched structure has smaller exposed surface and hence stronger dispersion intermolecular forces. The more branched structure has smaller exposed surface and hence weaker dispersion intermolecular forces. O The more branched structure has larger exposed surface and hence weaker dispersion intermolecular forces. O The more branched structure has larger exposed surface and hence stronger dispersion intermolecular forces.
Compare the boiling points of the various isomeric hydrocarbons shown in the table below. Notice the relationship between boiling point and structure; branched-chain hydrocarbons have lower boiling points than the unbranched isomer. Speculate on possible reasons for this trend. Why might the intermolecular forces be slightly different in these compounds? Compound Boiling Point (°C) 68.9 Hexane 3-Methylpentane 2-Methylpentane 2,3- A Dimethylbutane 2,2- 63.2 60.3 58.0 49.7 Dimethylbutane O The more branched structure has smaller exposed surface and hence stronger dispersion intermolecular forces. The more branched structure has smaller exposed surface and hence weaker dispersion intermolecular forces. O The more branched structure has larger exposed surface and hence weaker dispersion intermolecular forces. O The more branched structure has larger exposed surface and hence stronger dispersion intermolecular forces.
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Hexane
ATMcGraw Hill (
OWLv2.1 Orx
8 https://east.cengagenow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator assignment-take
3-Methylpentane
2-Methylpentane
2,3-
IT Central Authe
Dimethylbutane
2,2-
[References]
Compare the boiling points of the various isomeric hydrocarbons shown in the table below. Notice the relationship between boiling point and structure;
branched-chain hydrocarbons have lower boiling points than the unbranched isomer. Speculate on possible reasons for this trend. Why might the
intermolecular forces be slightly different in these compounds?
Compound Boiling Point (°C)
68.9
63.2
OWLv2 | Assig
60.3
Content
58.0
CengageNOV
New Tab
497
Dimethylbutane
O The more branched structure has smaller exposed surface and hence stronger dispersion intermolecular forces.
The more branched structure has smaller exposed surface and hence weaker dispersion intermolecular forces.
The more branched structure has larger exposed surface and hence weaker dispersion intermolecular forces.
The more branched structure has larger exposed surface and hence stronger dispersion intermolecular forces.
+
Ⓒ
O
2
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Hexane
ATMcGraw Hill (
OWLv2.1 Orx
8 https://east.cengagenow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator assignment-take
3-Methylpentane
2-Methylpentane
2,3-
IT Central Authe
Dimethylbutane
2,2-
[References]
Compare the boiling points of the various isomeric hydrocarbons shown in the table below. Notice the relationship between boiling point and structure;
branched-chain hydrocarbons have lower boiling points than the unbranched isomer. Speculate on possible reasons for this trend. Why might the
intermolecular forces be slightly different in these compounds?
Compound Boiling Point (°C)
68.9
63.2
OWLv2 | Assig
60.3
Content
58.0
CengageNOV
New Tab
497
Dimethylbutane
O The more branched structure has smaller exposed surface and hence stronger dispersion intermolecular forces.
The more branched structure has smaller exposed surface and hence weaker dispersion intermolecular forces.
The more branched structure has larger exposed surface and hence weaker dispersion intermolecular forces.
The more branched structure has larger exposed surface and hence stronger dispersion intermolecular forces.
+
Ⓒ
O
2
Other Bookmarks
Expert Solution
Step 1
The boiling point of an alkane depends on the surface area of the molecule. So, higher the surface area of the molecule, higher the boiling point of an alkane.
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