How do London dispersion forces affect boiling point?

Answer 1

They increase the intermolecular attractions, so more energy is needed to separate the molecules from each other.

The intermolecular attractions increase with a molecule's electron count.

Furthermore, the London dispersion forces rise with size.

More energy is required to separate the molecules from one another because of their increased attraction to one another.

The boiling point rises as a result.

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Answer 2

London dispersion forces, also known as van der Waals forces, are weak intermolecular forces that exist between all atoms and molecules. These forces increase with the size of the atoms or molecules involved. Larger molecules have more electrons, which leads to stronger temporary dipoles and thus stronger London dispersion forces. Consequently, substances with stronger London dispersion forces generally have higher boiling points because it takes more energy to overcome these intermolecular attractions and transition from the liquid to the gas phase.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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