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Briefly describe what happens when solids are heated

Briefly describe what happens when solids are heated

Answers

Victor
When a solid is heated, the particles vibrate more strongly as they gain kinetic energy and the particle attractive forces are weakened. Eventually, at the melting point, the attractive forces are too weak to hold the particles in the structure together in an ordered way and so the solid melts. The particles become free to move around and lose their ordered arrangement. Energy is needed to overcome the attractive forces and give the particles increased kinetic energy of vibration. On heating further, the particles gain more kinetic energy and move faster. In evaporation and boiling the particles with the highest kinetic energy can ‘escape’ from the attractive forces of the other liquid particles. The particles lose any order and become completely free to form a gas or vapour. Boiling is rapid evaporation anywhere in the bulk liquid and at a fixed temperature called the boiling point and requires continuous addition of heat.
Vicky001 answered the question on September 24, 2017 at 20:01

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