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Learning Goal: To understand the relation between intermolecular forces and the observable properties of liquids. Viscosity, surface tension, boiling point, and vapor pressure are properties of liquids that are affected by the intermolecular forces within them. Viscosity is a liquid's resistance to flowing. Examples of viscous liquids are molasses, olive oil, and maple syrup.

A) Surface tension
B) Boiling point
C) Viscosity
D) Vapor pressure

User Dejohn
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Final answer:

Liquids possess unique properties such as viscosity, surface tension, and capillary rise, which are dictated by their intermolecular forces. Viscosity is the resistance to flow, surface tension is the 'skin' created by forces at a liquid's surface, and capillary rise is the movement of liquid through narrow spaces due to adhesive forces. Option c is correct.

Step-by-step explanation:

The measurement of a liquid's resistance to flow is called viscosity. High-viscosity liquids like honey or motor oil have strong intermolecular forces that cause them to flow slowly. Water is also relatively viscous compared to other substances with similar structures due to its polarity, which leads to strong cohesive forces.

Surface tension is caused by the imbalance of forces acting on the particles at the surface of a liquid. This tension exists because particles at the surface experience unbalanced intermolecular forces from particles below, which pulls them inward, creating a sort of 'skin' on the liquid that resists external force.

Capillary rise or capillary action is the ability of a liquid to flow in narrow spaces without the assistance of external forces like gravity. This occurs when the adhesive forces, the attraction between the liquid's molecules and the surrounding material's molecules, are stronger than the cohesive forces within the liquid itself. This results in the liquid rising within the capillary tube and forming a meniscus, which reflects the balance of these adhesive and cohesive forces.

User Chejaras
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