Question

Which statement is true about the relationship between intermolecular forces and the boiling point of a liquid?

A) Stronger intermolecular forces lead to higher boiling points.
B) Weaker intermolecular forces lead to higher boiling points.
C) Intermolecular forces do not affect boiling points.
D) Boiling points are only determined by temperature.

Answer 1

Stronger intermolecular forces lead to higher boiling points.

Step-by-step explanation:

The statement that is true about the relationship between intermolecular forces and the boiling point of a liquid is:

A) Stronger intermolecular forces lead to higher boiling points.

Intermolecular forces are the forces of attraction between molecules, and they play a significant role in determining the boiling point of a liquid. Stronger intermolecular forces require more energy to break, resulting in a higher boiling point. For example, substances with hydrogen bonding, such as water, have stronger intermolecular forces and higher boiling points compared to substances without hydrogen bonding.

Answer 2

The strength of intermolecular forces, such as hydrogen bonding or London dispersion forces, directly influences the boiling point of a liquid. Stronger intermolecular forces require more energy to overcome, resulting in a higher boiling point. So correct option is A) Stronger intermolecular forces lead to higher boiling points.

Step-by-step explanation:

The boiling point of a liquid is determined by the strength of intermolecular forces between its molecules. Stronger intermolecular forces, such as hydrogen bonding or dipole-dipole interactions, require more energy to break, leading to a higher boiling point. In contrast, weaker forces, like London dispersion forces, result in lower boiling points as less energy is needed for molecules to transition from the liquid to the gaseous state.

Therefore, the relationship is such that stronger intermolecular forces correlate with higher boiling points. This principle is crucial in understanding the physical properties of substances and how they behave under different temperature conditions. So the correct option is A.