Effect of temperature on solubility:
Temperature: In solid substance solubility is related with temperature. Generally if the temperature is increased the solubility of solid substance is increases and if the temperature is decreased solubility of solid material is decreased. Due to excessive presence of solid substance if saturated solution we find the solution having equilibrium. So then the La Chatelier’s principle is followed. Most of the cases solid substances absorb temperature.
Solute (Solid) ↔ Solute (dissolved) — temperature
In this case if temperature is increased then equilibrium goes ahead where the temperature is absorbed. In this case if temperature is increased then the solubility will be increased.
On the other hand if,
Solute (s) ↔ solute (aq) + temperature
Then if temperature is increased then the solubility of compound is decreased. In case of solubility of gas in liquid if tempt-nature is increased then the solubility of gas in liquid is decreased and vice versa.
Example: In 250T the salability of Oxygen in water is 8.32 mg/L and at 0°c it is 14.74 mg/L.
