Mel5ng transi5on from solid phase to liquid requires

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Unformatted text preview: nce! Why? It takes less energy to break up a lafce with contaminants. Vapor pressue! Freezing (Mel5ng) Point Depression Solid and liquid are always in equilibrium. For mel5ng to occur, the vapor pressure of the solid must equal the vapor pressure of the liquid. Vapor pressures of solids don't change with composi5on (no real mixing) but do change with temperature. Freezing (Mel5ng) Point Depression (II) As some solid starts to melt, the contaminant substance (B) dissolves, lowering the vapor pressure of the liquid (solu5on, A)...
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This note was uploaded on 11/23/2010 for the course CHEMISTRY Chem 51 LA taught by Professor Dr.reneelink during the Spring '10 term at UC Irvine.

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