Question

which statement best explains why heating a liquid affects its viscosity? the molecules move faster at higher temperatures and overcome attractions more easily. the molecules move faster at higher temperatures, and the attractions between them increase. the molecules move slower at higher temperatures and overcome attractions more easily. the molecules move slower at higher temperatures, and the attractions between them decrease.

Explanation:

Viscosity is related to molecular - level behavior. When a liquid is heated, its molecules gain kinetic energy and move faster. Faster - moving molecules can overcome the intermolecular attractions more easily, which affects the liquid's viscosity.

Answer:

The molecules move faster at higher temperatures and overcome attractions more easily.