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boiling point
The temperature at which the liquid and gas phases of a substance are in equilibrium at a specified pressure; the temperature at which the vapor pressure of a liquid becomes equal to the external pressure. The normal boiling point is the boiling point at normal atmospheric pressure (101.325 kPa). Measurement of boiling point is important in chemical analysis and the determination of mrelative molecular masses.
Compare with melting point.
Related categories
• HEAT AND THERMODYNAMICS
• PROPERTIES OF MATTER
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