Other Factors Impacting Solubility

There are other factors too that would have an impact on the rate at which something dissolves or if it dissolves at all.  Take for instance, particle size's impact.  If a solid chunk is humongous, it is not likely to dissolve as quickly as if the same quantity of solid were divided up into a million little pieces.  We can explain why it takes less time for the smaller particles to dissolve in terms of the dissolving process.  Many of the bonds are already broken.  There is a greater surface area contact where the solvent can interact with the solute.  More water can get at more solute particles at any one time.  It just makes sense.  Similarly, it makes sense that agitating or stirring a solution would aid in the dissolving process.  

Temperature's impact is a little more complicated.  Looking at the graph below, we can see that temperature's impact is varied, but usually for most solids dissolving in solution, we can see that the solubility increases with increasing temperature.  There is simply more energy available to aid in the dissolving/mixing processes.  

For gases, we find the following.  In spite of the fact that some gases are more soluble than others due to polarity issues, the data shows that for all gases, as the temperature goes up, the solubility of the gas goes down.  This should make sense to us as well since we recognize that as the temperature goes up for the solution, the gas particles are going to be traveling faster and more able to leave the solution and go solo again.  If we increase the temperature, the vapor pressure increases, implying the solubility will be going down.