What does stronger intermolecular forces indicate about a liquid's viscosity?

Stronger intermolecular forces in a liquid lead to higher viscosity, which means the liquid will move more slowly. Viscosity is a measure of a fluid's resistance to flow; when intermolecular forces are strong, molecules are more tightly held together and are less likely to slide past one another easily. This results in a thicker, stickier liquid that flows less freely compared to liquids with weaker intermolecular forces.

For example, compare water and honey. Water has relatively weak hydrogen bonds between its molecules, allowing it to flow easily and resulting in low viscosity. In contrast, honey has much stronger intermolecular forces due to its composition and structure, making it more viscous and causing it to flow slowly.

In summary, strong intermolecular forces increase viscosity, leading to a slower movement of the liquid.