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Define solubility and describe effects of temperature and pressure on solubility. | web4study
Define solubility and describe effects of temperature and pressure on solubility.
Solubility is defined as the amount in grams of a solute required to be dissolved in 100 grams or 100 ml of a solvent to prepare a saturated solution at room temperature.
FACTORS AFFECTING SOLUBILITY:
Many factors affect the solubility of·a solute in a solvent These factors may be:
Pressure (For gases).
Nature of solute
Nature of solvent
Effect of temperature on solubility:
The solubility of a solid in liquid or solubility of partially · miscible liquids increases with inc.rease in temperature. Thus solubility of sugar in water at 0°C is 179 g/ 100ml whereas at 100°c it is 487 g / 100ml.
But the solubility of gases in a liquid decreases with the increase in temperature. For this reason, when a glass of cold water is warmed, bubbles of air are seen on the inside of the glass.