Question

On increasing the temperature, the solubility of the solute in the solvent:

• A. Increase
• B. Decrease
• C. Change
• D. Does not change

Hint:

Temperature affects solubility; for most solids, higher temperatures increase solubility.

Answer 1

The Correct Option is A

On increasing the temperature, the solubility of the solute in the solvent: 

• Option 1: Increase - This is the correct answer. In most cases, increasing the temperature increases the solubility of solid solutes in a liquid. This is because higher temperatures provide more energy for the solute particles to dissolve.
• Option 2: Decrease - This is incorrect. For most solid solutes, solubility increases with temperature. However, for gases, solubility tends to decrease with an increase in temperature.
• Option 3: Change - This is too vague. The solubility of a solute typically either increases or decreases with temperature, depending on the nature of the solute and solvent.
• Option 4: Does not change - This is incorrect. Solubility does change with temperature for most substances, especially for solids in liquids.

Explanation:

For most solid solutes in liquids, increasing the temperature increases solubility. This happens because higher temperatures provide more kinetic energy to the solute particles, making it easier for them to dissolve. However, for gases, solubility decreases as temperature increases.