Gas is always more soluble in cold liquid than it is in warm liquid. That's why it is important to get the wine to 23-25C for degassing. Also, the warmer the wine is the better it will clarify. There is a very complex formula that quantifies settling rate of particles in liquid, which I no longer have access to. However, one of the factors is the difference in density between the particles and the liquid. Warmer liquid is less dense, increasing the difference in density between the solids and liquid, thus increasing settling rate.