Question
Explain with the help of Le Chatelier’s principle the effect of temperature on solubility.
✓
Answer
1. The effect of temperature on solubility depends on enthalpy of solution.
2. For example, dissolution of $KCl$ in water is an endothermic process since heat is absorbed during dissolution. In according to Le Chatelier's principle by increasing temperature the solubility of $KCl$ increases.
3. Dissolution of $CaCl _2, Li _2 SO _4, H _2 O$ in water is an exothermic process since heat is evolved during dissolution. In this, according to Le Chatelier's principle by increasing the temperature the solubility decreases.
2. For example, dissolution of $KCl$ in water is an endothermic process since heat is absorbed during dissolution. In according to Le Chatelier's principle by increasing temperature the solubility of $KCl$ increases.
3. Dissolution of $CaCl _2, Li _2 SO _4, H _2 O$ in water is an exothermic process since heat is evolved during dissolution. In this, according to Le Chatelier's principle by increasing the temperature the solubility decreases.
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