5. The Structure of Liquids and Solids

5. The Structure of Liquids and Solids - Chapter 5 The...

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The Structure of Liquids and Solids Chapter 5
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A phase is a homogeneous part of the system in contact with other parts of the system but separated from them by a well-defined boundary . 2 Phases Solid phase - ice Liquid phase - water
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Intermolecular Forces Intermolecular forces are attractive forces that hold molecules together in solid states Intramolecular forces are attractive forces that hold atoms together in a molecule. Intermolecular vs Intramolecular 41 kJ to vaporize 1 mole of water ( inter ) 930 kJ to break all O-H bonds in 1 mole of water ( intra ) Generally, intra molecular forces are much stronger than inter molecular forces. Measure” of intermolecular force boiling point melting point
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Properties of Liquids Surface tension is the amount of energy required to stretch or increase the surface of a liquid by a unit area. Strong intermolecular forces High surface tension
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Viscosity is a measure of a fluid’s resistance to flow. Strong
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5. The Structure of Liquids and Solids - Chapter 5 The...

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