Question

What would happen to the solubility of the saturated salt solution, with rising temperature?

• A. True
• B. False
• C. Solubility remains the same
• D. Solubility first increases and then decreases

Answer 1

The correct option is B

False

Solubility is measured in terms of the maximum amount of the solute that can be dissolved in a solvent at room temperature. At this stage, when no more solute can be added, the solution is called a saturated solution. Solubility often depends on temperature; the solubility of many solvents increases with an increase in temperature. On heating, more of the solute can be dissolved in a saturated solution. Heating increases the kinetic energy of the particles, hence motion of the solvent and solute particles increases. This frees up more space for the solute particles to occupy.