Viscosity increases with increased intermolecular force because the molecules attract each other strongly which hinders the flow.

Question

Quizplus · Accepted Answer

Viscosity is the measure of a fluid's resistance to flow. When the intermolecular forces between the molecules in a fluid increase, the molecules tend to stick to each other and require more energy to move past each other, thus hindering the flow and increasing the viscosity of the fluid.

Viscosity Increases with Increased Intermolecular Force Because the Molecules Attract