PPT Slide

12

Solid-Liquid Equilibria

• At the molecular level, particles in solids continually vibrate at  their sites in the crystal.

• As temperature rises, particles vibrate more rapidly until some have  enough kinetic energy to break free of the lattice: melting begins.

• The temperature at which this occurs is the melting point; it is the  same temperature as the freezing point.

• Unlike the boiling point, the melting point is affected only  slightly by pressure.

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