The melting point of lead is 327.5 ° C, and the boiling point is 1740 ° C. These indicators are relevant at standard atmospheric pressure.
In thermodynamics, the melting point defines the condition in which a solid and a liquid can be in equilibrium. Adding heat converts the solid to liquid without changing temperature. The melting point of a substance depends on pressure and is usually indicated at standard pressure.
The temperature at which evaporation (boiling) begins to occur at a given pressure is called the saturation temperature or boiling point.
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