Concept:Solubility of gases in a liquid depends on temperature.
Explanation:Gases have low densities because their particles are far apart, so statement A is correct.
In ideal gases, collisions are elastic, so total kinetic energy is not lost; statement B is correct.
Gas molecules move randomly and constantly; statement C is correct.
However, the solubility of gases in water decreases as temperature increases.
Higher temperature gives gas molecules more kinetic energy, allowing them to escape the liquid.
Therefore, gases are not highly soluble in water at high temperatures.
Statement D is the incorrect statement.
Answer:D. Gases are highly soluble in water at high temperatures.