Does the solubility of a substance change with temperature? Explain with the help of an example.

Explanation

Yes, the solubility of a substance changes with temperature.
The maximum amount of a solute which can be dissolved in 100g of a solvent at a specified temperature is called its solubility.
Effects of temperautre on solubility.
i) The solubility of solids in liquids usually increases the temperature and decreases on decreasing the temperature.
ii) The solubility of gasses in liquids usually decreases on increasing the temperature and increases on decreasing the temperature.
Let us take an exmaple of copper sulphate. The solubilities of copper sulphate in water at various temperature are given below.

From the above data, it is clear that, when the temperature is increased from `0^(@)C` to `70^(@)`C, the solubility of copper sulphate in water increases from 14g to 47g. The above shows that the solubility of a salt increase on increasing the temperature.