Question

does the pattern in the alcohol boiling points always apply? Is molecular weight an important contributor to intermolecular forces? Why or why not?

Answer 1

Answer:

These boiling points are compared with those of the equivalent alkanes (methane to butane) with the same number of carbon atoms. Notice that: The boiling point of an alcohol is always significantly higher than that of the analogous alkane.

Since the dipoles are weak and transient, they depend on contact between molecules – which means that the forces increase with surface area. A small molecule like methane has very weak intermolecular forces, and has a low boiling point. ... Therefore, dispersion forces increase with increasing molecular weight.

Answer 2

Answer:

The pattern is that the boiling point is always higher like 32 molecular weight the boiling point is 65.

Explanation: