Since salicylic acid is the reason for aspirin's medicinal properties, its concentration in hydrolyzed acetylsalicylic acid is incredibly important, and the effect of varying temperature on this concentration must be explored to provide patients with adequate handling instructions. According to Collision Theory, rate of reaction, in this case hydrolysis, increases with temperature as higher temperatures increase the rate of collision and the proportion of successful collisions in a reaction . This leads to the hypothesis that the concentration of produced salicylic acid increases as temperature increases. Since temperature and rate of reaction have an exponential relationship, it would be expected for the increase in concentration of salicylic acid to occur exponentially as well .