How is molecular weight related to intermolecular forces?

Answer 1

Well, the heavier the molecule, the more electrons it contains.....

...and the more electrons it contains, the LARGER, and the MORE POLARIZABLE the electron cloud of the molecule is, and thus the GREATER the possibility of intermolecular interaction by dispersion forces.

This trend is nicely illustrated by the Noble Gases. the which are all room temperature gases, with minimal forces of intermolecular (i.e. here interatomic) interaction.....

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Answer 2

Natalie Anton

Molecular weight influences intermolecular forces, as larger molecules generally exhibit stronger forces due to increased surface area and greater dispersion forces. Additionally, higher molecular weight often correlates with higher boiling points, indicating stronger intermolecular attractions.

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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.