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Freezing Point - MSN Encarta (520 words) |
 | The freezing point of a pure (unmixed) liquid is essentially the same as the melting point of the same substance in its solid form and may be regarded as the temperature at which the solid and liquid states of the substance are in equilibrium. |
| Hence, the freezing point or melting point of a pure substance may also be defined as the temperature at which freezing or melting continues once it has commenced. |
| The molecular weight of an unknown or unidentified substance may be determined by measuring the amount by which the freezing point of a solvent is lowered when a known amount of the unidentified substance is dissolved in it. |
| The MSDS HyperGlossary: Freezing Point (335 words) |
| Freezing point is the temperature at which a liquid becomes a solid at normal atmospheric pressure. |
| The normal freezing point is the temperature at a substance melts (or freezes) at one atmosphere (760 torr = 760 mm Hg = 14.7 psi = 101.3 kPa) of pressure. |
| Melting points may be lowered (depressed) by the addition of a soluble material to the solution. |
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