AP Chemistry
3.1 Intermolecular and Interparticle Forces
A student investigates the physical properties of two structural isomers of \(\text{C}_5\text{H}_{12}\) and compiles the data shown in the table below.
Which of the following statements best explains why pentane has a higher boiling point than 2,2-dimethylpropane?
| Compound | Condensed structural formula | Molar mass (\(\text{g/mol}\)) | Normal boiling point (\(^\circ\text{C}\)) |
|---|---|---|---|
| Pentane | \(\text{CH}_3\text{CH}_2\text{CH}_2\text{CH}_2\text{CH}_3\) | \(72.15\) | \(36\) |
| 2,2-dimethylpropane | \(\text{C(CH}_3)_4\) | \(72.15\) | \(9.5\) |
Which of the following statements best explains why pentane has a higher boiling point than 2,2-dimethylpropane?
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