PPT Slide

35

• In liquid flow, molecules slide around each other. Intermolecular  attractions hamper this, causing viscosity, the resistance to flow.

Viscosity

• The viscosity of a liquid decreases with increasing temperature.

• Shape influences viscosity. Long molecules make more contact  than spherical ones; for like forces, liquids with longer molecules  have higher viscosities.

Properties of the Solid State

• Crystalline solids  have well-defined  shapes because of  an orderly  arrangement of their  atoms, molecules,  or ions

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