Two compounds with the formula \(C_2H_2Cl_2\) appear in the above diagram. These two compounds are isomers. The molecules are planar and have the approximate structures shown in the diagram. The boiling point of trans-1, 2-dichloroethene is 47.5°C and the boiling point of cis-1, 2-dichloroethene is 60.3°C. Which of the following best explains why cis-1, 2-dichloroethene has a higher boiling point than its isomer, trans-1, 2-dichloroethene?
A.
The higher boiling isomer is more polar than the other isomer.
B.
The higher boiling isomer is better able to form hydrogen bonds than the other isomer.
C.
The higher boiling isomer has a greater molar mass.
D.
The higher boiling isomer has greater London dispersion forces than the other isomer.
Exam No：AP Chemistry Problem Set 7 Year：2024 Question No：APChemistry2024AP0306
Answer:
A
Knowledge points:
3.1 Intermolecular and Interparticle Forces
Solution:
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