Do experiment of determination of boiling point and frezzing point
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Project Report Boiling Point and Freezing Point : Generally, on cooling a liquid its temperature falls gradually till it starts freezing. At this point the temperature remains constant till whole of the liquid changes into solid.
"The fixed temperature at which a certain liquid freezes, is termed as its freezing point." Freezing point of water is 00C or 273 K.
In the same manner, on heating a liquid its temperature rises gradually till a stage comes when the temperature does not rise further and the liquid starts boiling. The fixed temperature at which a certain liquid boils is termed as the boiling point of liquid. The boiling point of water is 1000C or 373 K.
In terms of vapour pressure (pressure exerted by the vapours of solution) Boiling point of a liquid is the temperature at which vapour pressure of the liquid becomes equal to the atmospheric pressure.
Freezing point of a substance is the temperature at which the solid and the liquid forms of substance have same vapour pressure.