Higher IM forces = ________ Viscosity.

Higher IM forces = ________ Viscosity.

• A. Higher
• B. Lower
• C. No change
• D. Increases with temperature

Answer: (A)

Viscosity is a measure of how easily a liquid flows, which depends on how strongly the molecules attract each other. When intermolecular forces are stronger, the molecules stick together more and resist being moved past one another. That makes it harder for layers to slide, so the liquid flows more slowly and its viscosity is higher. In contrast, weaker intermolecular forces allow easier flow and lower viscosity. Temperature also matters: as temperature rises, kinetic energy increases and helps molecules break apart from each other, usually lowering viscosity. So, stronger intermolecular forces lead to higher viscosity.

Viscosity is a measure of how easily a liquid flows, which depends on how strongly the molecules attract each other. When intermolecular forces are stronger, the molecules stick together more and resist being moved past one another. That makes it harder for layers to slide, so the liquid flows more slowly and its viscosity is higher. In contrast, weaker intermolecular forces allow easier flow and lower viscosity. Temperature also matters: as temperature rises, kinetic energy increases and helps molecules break apart from each other, usually lowering viscosity. So, stronger intermolecular forces lead to higher viscosity.