Freezing point The temperature at which

Constants and Chemical Properties. The constants of sulfur are presented in Table 1. Two freezing points ate given for each of the two crystalline modifications. When the Hquid phase consists solely of octatomic sulfur rings, the temperature ranges at which the various modifications form are called the ideal freezing points. The temperatures at which the crystalline forms are in equiHbtium with Hquid sulfur containing equiHbtium amounts of... 

Freezing point The temperature at which a liquid solidifies. The same as Jitelting point. 

Pure solid solvent coexists at equilibrium with its characteristic vapor pressure, determined by the temperature (Section 10.4). Solvent in solution likewise coexists with a certain vapor pressure of solvent. If solid solvent and the solvent in solution are to coexist, they must have the same vapor pressure. This means that the freezing temperature of a solution can be identified as the temperature at which the vapor-pressure curve of the pure solid solvent intersects that of the solution (Fig. 11.12). As solute is added to the solution, the vapor pressure of the solvent falls and the freezing point, the temperature at which the first crystals of pure solvent begin to appear, drops. The difference ATf = T/ — Tf is therefore negative, and a freezing-point depression is observed. 

Freezing point. The temperature at which the solid and liquid phases of a substance coexist at equilibrium. (11.8) Frequency. The number of waves that pass through a particular point per unit time. (7.1)... 

The temperature at which a pure liquid changes to a crystalline solid, or freezes, is called the freezing point. The temperature at which a crystalline solid changes to a liquid, or melts, is called the meltii point it is identical to the freezing point The melting or freezing occurs at the temperature where the liquid and solid are in... 

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