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Which statement best explains why heating a liquid affects its viscosity? 1.)The molecules move faster at higher temperatures and overcome attractions more easily. 2.)The molecules move faster at higher temperatures, and the attractions between them increase. 3.)The molecules move slower at higher temperatures and overcome attractions more easily. 4.)The molecules move slower at higher temperatures, and the attractions between them decrease.

Blair Lewis

in Chemistry

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Blair Lewis on November 18, 2018

The correct option is this: THE MOLECULES are MOVING FASTER AT HIGHER TEMPERATURE AND to OVERCOME the ATTRACTIONS MORE EASILY.The viscosity of a liquid substance refers to its tendency to resist flow as a result of the interactions between the molecules of the liquid. The stronger is the molecular attraction between the molecules of the liquid, the greater is the viscosity. When heat is applied to a viscous liquid, its temperature increases and the force of attraction between the molecules are broken.


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