Posted by shAY on .
What happens to the NH4+ and Cl] ions when they enter the water
What happens to the NH4+ and Cl] ions when they enter the water? Does this process release or require energy?
If you are talking about adding NH4Cl solid to water, it dissociates into NH4^+ and Cl^-. I believe that process is endothermic (it requires energy to break the crystal structure). Some of that energy can come from the formation of the hydrated ions but there is a net loss and that comes from the solvent in the form of lowering the temperature.