If dissolution of a solute is endothermic, what happens to its solubility on increasing temperature?
Answer and explanation
Correct answer: Generally increases
For an endothermic dissolution, heat behaves like a reactant in the dissolution equilibrium. Raising temperature supplies heat and, by Le Chatelier's principle, generally shifts the equilibrium toward more dissolved solute. The word “generally” is important because real solubility also depends on molecular interactions and the temperature range. Pressure does not become irrelevant to every solution property.
Frequently asked questions
What is the correct answer to this question?
Generally increases
Why is this the correct answer?
For an endothermic dissolution, heat behaves like a reactant in the dissolution equilibrium. Raising temperature supplies heat and, by Le Chatelier's principle, generally shifts the equilibrium toward more dissolved solute. The word “generally” is important because real solubility also depends on molecular interactions and the temperature range. Pressure does not become irrelevant to every solution property.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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