Solubility of gases in liquids __________ with decrease in temperature.

Options

A. Remains constant
B. First decreases and then increases
C. Increases
D. decreases

Answer

C

Explanation

Solubility of gases in liquids increases with decrease in temperature and it decreases with the increase in temperature. Adding heat to the solution provides thermal energy that overcomes the attractive forces between the gas and the solvent molecules, thereby decreasing the solubility of the gas and when we decrease the temperature solubility increases.