1. The problem statement, all variables and given/known data The solubility of a gas in water decreases as temperature increases, and increases as temperature decreases. Using the kinetic molecular theory, explain why this is so. I would like an opinion please on my answer below. Is it a sufficient explanation? THANKS!!! 3. The attempt at a solution According to the Kinetic Molecular Theory, when you increase temperature, the gas moleclues are moving faster causing the solubility to decrease because of more collision between the particles. When the temperature decreases, the gas molecules are not moving as fast, causing them to have a higher solubility.