Going from liquid to solid is exothermic but..............

[rak173]

---

Members don't see this ad.

.......when a solute is added to solution, solution's temperature decreases and this is considered as an endothermic reaction. I don't understand this. Can someone please clear this up.

 

[mouse rat]

The energy required to break up the solute into ions by the solvent molecules makes the process endothermic.

 

[rak173]

The energy required to break up the solute into ions by the solvent molecules makes the process endothermic.

Does adding solutes in solvent always decrease the temperature?

 

[dentalstudent2021]

Does adding solutes in solvent always decrease the temperature?

yes, IF the bonds of the solute are being broken. the "endothermic" part is when energy is being put into the reaction to break apart the bonds.