Colligative Properties PowerPoint
Colligative Properties PowerPoint
Colligative Properties PowerPoint
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Heat of Solution• Most materials either absorb or give offheat energy when they dissolve in aliquid. They undergo an enthalpychange.• Enthalpy (ΔH) is the internal energy of asystem.• For example, when NH 4 Cl dissolves, itabsorbs heat from the water, making acold solution.• NH 4 Cl has a positive heat of solution.