Question

Why does solubility increase with decrease with temperature?

Answer 1

Increased temperature causes an increase in kinetic energy. The higher kinetic energy causes more motion in the gas molecules which break intermolecular bonds and escape from solution. Check out the graph below: As the temperature increases, the solubility of a gas decreases as shown by the downward trend in the graph.

Answer 2

Answer:

(1) The gases are soluble in water and other liquids.

(2) According to Charles* law, the volumc of a given mass of a gas increases with the increase in temperature at constant pressure.

3) Hence, the volume of the dissolved gas increases with the increase in temperature

(4) This enormous increase in volume of the gases cannot be accommodated by the solvent molecules, hence excess of the gases escape out in the form of bubbles.

Therefore, the solubility of gases in liquids decreases with temperature.