Problem: Propanol has a higher boilint point (C3H7OH, 82.3 degrees Celsius) than propane (C3H8, 42.1 degrees Celsius) pick the best answer why?1.) Stronger hydrogen bonding in propane than propanol2.) Hydrogen bonding on propane but not propanol3.) Stronger dispersion forces in propanol than propane4.) stronger hydrogen bondin in propanol than propane5.) hydrogen bonding in propanol but not propane.

FREE Expert Solution

We’re being asked to identify the compound with the highest boiling point among the given choices.


Recall that there are several types of intermolecular forces (IMF):

1. Ion-dipole interaction – occurs between an ion and a polar covalent compound; strongest IMF

2. Hydrogen bonding – occurs in compounds where hydrogen is directly connected to an electronegative element such as N, O, or F; 2nd strongest IMF

3. Dipole-dipole interaction – occurs between two polar covalent compounds; 3rd strongest IMF

4. Dispersion forces – occurs in all compounds and is the primary IMF exhibited by nonpolar compounds; weakest IMF


Compounds with strong intermolecular forces have high boiling points. This is because they require more energy to be able to break the bonds during the phase transition.


So, we need to identify which among the given compounds has the strongest intermolecular forces.


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Problem Details

Propanol has a higher boilint point (C3H7OH, 82.3 degrees Celsius) than propane (C3H8, 42.1 degrees Celsius) pick the best answer why?

1.) Stronger hydrogen bonding in propane than propanol
2.) Hydrogen bonding on propane but not propanol
3.) Stronger dispersion forces in propanol than propane
4.) stronger hydrogen bondin in propanol than propane
5.) hydrogen bonding in propanol but not propane.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Intermolecular Forces and Physical Properties concept. If you need more Intermolecular Forces and Physical Properties practice, you can also practice Intermolecular Forces and Physical Properties practice problems.