Skill 16.2 Recognizing factors that affect solubility, including intermolecular forces

Skill 16.2 Recognizing factors that affect solubility, including intermolecular forces 

Pressure does not dramatically alter the solubility of solids or liquids, but kinetic 

Increasing the temperature decreases the solubility of a gas in a liquid because kinetic energy opposes intermolecular attractions and permits more molecules to escape from the liquid phase. The vapor pressure of a pure liquid increases with temperature for the same reason. Greater kinetic energy favors material in the gas phase. 

For solid and liquid solutes, the effects of temperature are dependent on whether the reaction absorbs heat (endothermic reaction) or releases heat (exothermic reaction). The following brief analysis is applicable for the effect of temperature on solutions. 

Three processes occur when a solution is formed  

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