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Chapter 7 - Coggle Diagram
Chapter 7
Contents
Concentration
Boiling point elevation
Effect of temperature & pressure on solubility
Freezing point depression
Dissolution of solids, liquids & gases in liquids
Osmotic Pressure
Solution
gas
liquid
homogeneous mixture
solvent (large amount)
used to dissolve the solute
solute (small amount)
solid
Solute + Solvent → Solution
Liquid + Liquid → Liquid (Alcohol in water)
Solid + Liquid → Liquid (Salt in water)
Gas + Liquid → Liquid (Oxygen in water)
Solution
saturated solution
solvent contains = maximum amount of solute
supersaturated solution
solvent contains > maximum amount of solute
unsaturated solution
solvent contains < maximum amount of solute
Aqueous solution
solvent in excess
solvent is water
Solubility
depends on
pressure
gas
chemical nature
solvent
solute
temperature
liquid
solid
gas
amount of solute required to form a saturated solution
Effect on Solubility
Pressure
solubility of liquid & solid doesn't change with changing pressure
solubility of gas increases with increasing pressure
Temperature
liquid in liquid
Immiscible
Partially miscible
solubility increases with increasing temperature
Miscible
solubility decreases with increasing temperature
solid in liquid
Exothermic (rare)
solubility decreases with increasing temperature
Endothermic (common)
solubility increases with increasing temperature
gas in liquid
solubility almost decreases with increasing temperature