Question

5. What happens to solubility of a substance on heating:

• A. it increases
• B. it decreases
• C. it remains unaffected
• D. None of these

Answer 1

The correct option is A

it increases

Explanation:

• Solubility is defined as the ability of a substance (solute) to dissolve in another substance (solvent) to form a solution.
• On heating, the temperature increases so the kinetic energy of molecules of a substance increases. As a result of this, the intermolecular space between the solvent molecules increases thus solute can easily occupy the intermolecular space.
• Thus, solubility of a substance increases on heating.

Hence, option (A) is the correct answer.