I know xylitol in water is an endothermic reaction. The temperature of water drops when xylitol is added.

When xylitol is added in high concentration, the temperature of the water drops fast (for example, from 33 °C to 28 °C), but then increases a couple of degrees before slowly dropping once again.

But if xylitol is added at lower concentration, the temperature drop is more gradual and no temperature increase is seen. Why the difference in temperature behavior between high and low concentration xylitol?

The other question I have is when xylitol dissolves in water, what does it break down into and why does the temperature drop (explain in layman's terms)?

  • $\begingroup$ yes, please add details. What volume of water? How much xylitol added? Container, stirring, time scale of temp change, all the details you've got. . . $\endgroup$ – Andrew Jul 26 at 22:50
  • $\begingroup$ This strikes me as an interesting question but requires more background, such as experimental details. How do you perform the experiment? In an insulated container? With constant stirring? $\endgroup$ – Buck Thorn Jul 28 at 19:55